Standoffs & Spacers – Mouser Singapore

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Round Clear Hole Spacers

Keystone Electronics Round Clear Hole Spacers are available in four types of material with clearance holes for #4, #6, #8, and #10 screw sizes. The aluminium spacers feature a clear Iridite finish in accordance with MIL-C-5541 standards, while the brass spacers have a nickel finish in accordance with QQ-N-290 requirements. The insulated types include nylon 6/6 spacers in a natural colour and phenolic spacers manufactured from a natural colour PBE-grade material. Keystone Electronics Round Clear Hole Spacers have an outer diameter of 0.250" (6.35 mm) or 0.312" (7.925 mm) and an overall length of 0.125" (3.175 mm) to 2" (50.8 mm) with threaded or unthreaded options.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Length	Material	Outside Diameter	Plating	Gender	Packaging
Standoffs & Spacers RD ALUM 4 X .125" 2036 Keystone Electronics 1: $0.354 31,421In Stock	Mfr. Part No. 2036 Mouser Part No 534-2036	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .125" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	31,421In Stock	$0.354 $0.29 $0.258 $0.218 View $0.189 $0.156 $0.141 $0.137	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .125" 3403 Keystone Electronics 1: $0.422 9,417In Stock	Mfr. Part No. 3403 Mouser Part No 534-3403	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .125" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	9,417In Stock	$0.422 $0.335 $0.299 $0.253 View $0.209 $0.184 $0.167	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers 1/8" NYLON SPACER 875 Keystone Electronics 1: $0.381 121,606In Stock	Mfr. Part No. 875 Mouser Part No 534-875	Keystone Electronics	Standoffs & Spacers 1/8" NYLON SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	121,606In Stock	$0.381 $0.374	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Nylon	0.25 in		Female / Female	Bulk
Standoffs & Spacers NYLON SPACER 884 Keystone Electronics 1: $0.354 21,971In Stock	Mfr. Part No. 884 Mouser Part No 534-884	Keystone Electronics	Standoffs & Spacers NYLON SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	21,971In Stock	$0.354 $0.286 $0.253 $0.215 View $0.209 $0.18 $0.156 $0.146 $0.133	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Nylon	0.25 in		Female / Female	Bulk
Standoffs & Spacers .375 Rd Clr hle spcr .250 OD #4 1454B Keystone Electronics 1: $1.60 400In Stock	Mfr. Part No. 1454B Mouser Part No 534-1454B	Keystone Electronics	Standoffs & Spacers .375 Rd Clr hle spcr .250 OD #4 Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	400In Stock	$1.60 $1.22 $1.13 $1.12 View $1.02 $0.733 $0.665 $0.653	Min.: 1 Mult.: 1	Spacers	Round	9.52 mm	Brass	6.35 mm	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X1/4"SPACER RND 1457A Keystone Electronics 1: $0.884 154In Stock 500On Order	Mfr. Part No. 1457A Mouser Part No 534-1457A	Keystone Electronics	Standoffs & Spacers 1/4"X1/4"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	154In Stock 500On Order On Order Ship Dates Mfr. No: 1457A Stock: 154 Can Dispatch Immediately On Order: 188 Expected 10/11/2026 312 Expected 28/12/2026 Factory Lead Time: 12 Weeks	$0.884 $0.675 $0.664 $0.39 View $0.363 $0.335	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X3/8"SPACER RND 1457B Keystone Electronics 1: $0.979 5,064In Stock	Mfr. Part No. 1457B Mouser Part No 534-1457B	Keystone Electronics	Standoffs & Spacers 1/4"X3/8"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	5,064In Stock	$0.979 $0.743 $0.707 $0.666 View $0.665 $0.602 $0.431 $0.394 $0.37	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers .750" RND SPACER 1457D Keystone Electronics 1: $2.05 420In Stock	Mfr. Part No. 1457D Mouser Part No 534-1457D	Keystone Electronics	Standoffs & Spacers .750" RND SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	420In Stock	$2.05 $1.58 $1.50 $1.47 View $1.40 $1.36 $0.942 $0.857	Min.: 1 Mult.: 1	Spacers	Round	0.75 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X3/8"SPACER RND 1481 Keystone Electronics 1: $0.952 98In Stock	Mfr. Part No. 1481 Mouser Part No 534-1481	Keystone Electronics	Standoffs & Spacers 1/4"X3/8"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	98In Stock	$0.952 $0.729 $0.662 $0.562 View $0.466 $0.432 $0.392 $0.378	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers .500 Rd Clr hle spcr .250 OD #8 Brass 1482 Keystone Electronics 1: $1.12 2,003In Stock	Mfr. Part No. 1482 Mouser Part No 534-1482	Keystone Electronics	Standoffs & Spacers .500 Rd Clr hle spcr .250 OD #8 Brass Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	2,003In Stock	$1.12 $0.861 $0.779 $0.661 View $0.549 $0.499 $0.461 $0.449	Min.: 1 Mult.: 1	Spacers	Round	12.7 mm	Brass	6.35 mm	Nickel	Female / Female	Bulk
Standoffs & Spacers .250 Rd Clr hle spcr .312 OD #10 1662 Keystone Electronics 1: $3.09 94In Stock	Mfr. Part No. 1662 Mouser Part No 534-1662	Keystone Electronics	Standoffs & Spacers .250 Rd Clr hle spcr .312 OD #10 Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	94In Stock	$3.09 $2.94 $2.43 $2.09 View $1.35 $1.22 $1.18	Min.: 1 Mult.: 1	Spacers	Round	6.35 mm	Brass	7.92 mm	Nickel	Female	Bulk
Standoffs & Spacers .125 Rnd Clr spcr .250 OD #6 Brass 1934 Keystone Electronics 1: $0.68 1,555In Stock 2,100Expected 9/11/2026	Mfr. Part No. 1934 Mouser Part No 534-1934	Keystone Electronics	Standoffs & Spacers .125 Rnd Clr spcr .250 OD #6 Brass Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,555In Stock 2,100Expected 9/11/2026	$0.68 $0.552 $0.54 $0.487 View $0.352 $0.322 $0.305	Min.: 1 Mult.: 1	Spacers	Round	3.18 mm	Brass	6.35 mm	Nickel	Female / Female	Bulk
Standoffs & Spacers RD ALUM 4 X .875" 3402 Keystone Electronics 1: $0.966 976In Stock	Mfr. Part No. 3402 Mouser Part No 534-3402	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .875" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	976In Stock	$0.966 $0.74 $0.673 $0.571 View $0.475 $0.423 $0.393 $0.37	Min.: 1 Mult.: 1	Spacers	Round	0.875 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .625" 3429 Keystone Electronics 1: $0.789 50In Stock	Mfr. Part No. 3429 Mouser Part No 534-3429	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .625" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	50In Stock	$0.789 $0.611 $0.547 $0.462 View $0.385 $0.355 $0.322 $0.299	Min.: 1 Mult.: 1	Spacers	Round	0.625 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 4 X .250" 3457 Keystone Electronics 1: $0.517 3,274In Stock	Mfr. Part No. 3457 Mouser Part No 534-3457	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .250" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	3,274In Stock	$0.517 $0.43 $0.379 $0.324 View $0.321 $0.273 $0.249 $0.224 $0.212	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers .250 X .375 #4 ROUND SPACER 3458 Keystone Electronics 1: $0.666 1,789In Stock	Mfr. Part No. 3458 Mouser Part No 534-3458	Keystone Electronics	Standoffs & Spacers .250 X .375 #4 ROUND SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,789In Stock	$0.666 $0.517 $0.462 $0.392 View $0.325 $0.296 $0.271 $0.252	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 4 X .500" 3459 Keystone Electronics 1: $0.734 1,947In Stock	Mfr. Part No. 3459 Mouser Part No 534-3459	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .500" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,947In Stock	$0.734 $0.559 $0.499 $0.423 View $0.351 $0.322 $0.294 $0.273	Min.: 1 Mult.: 1	Spacers	Round	0.5 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RND ALUM #6 X .25" 3464 Keystone Electronics 1: $0.449 6,229In Stock 6,800Expected 9/11/2026	Mfr. Part No. 3464 Mouser Part No 534-3464	Keystone Electronics	Standoffs & Spacers RND ALUM #6 X .25" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	6,229In Stock 6,800Expected 9/11/2026	$0.449 $0.385 $0.355 $0.305 View $0.253 $0.234 $0.211 $0.199	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .375" 3465 Keystone Electronics 1: $0.68 612In Stock	Mfr. Part No. 3465 Mouser Part No 534-3465	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .375" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	612In Stock	$0.68 $0.517 $0.462 $0.392 View $0.325 $0.301 $0.271 $0.252	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .500" 3466 Keystone Electronics 1: $0.734 6,225In Stock 3,000Expected 9/11/2026	Mfr. Part No. 3466 Mouser Part No 534-3466	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .500" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	6,225In Stock 3,000Expected 9/11/2026	$0.734 $0.559 $0.499 $0.423 View $0.351 $0.322 $0.294 $0.273	Min.: 1 Mult.: 1	Spacers	Round	0.5 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .750" 3467 Keystone Electronics 1: $0.87 1,019In Stock	Mfr. Part No. 3467 Mouser Part No 534-3467	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .750" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,019In Stock	$0.87 $0.662 $0.607 $0.514 View $0.427 $0.377 $0.358 $0.332	Min.: 1 Mult.: 1	Spacers	Round	0.75 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X 1.50" 3469 Keystone Electronics 1: $2.34 1,095In Stock 300Expected 10/11/2026	Mfr. Part No. 3469 Mouser Part No 534-3469	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X 1.50" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,095In Stock 300Expected 10/11/2026	$2.34 $1.80 $1.60 $1.35 View $1.16 $0.979 $0.944	Min.: 1 Mult.: 1	Spacers	Round	1.5 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .250" 3471 Keystone Electronics 1: $0.558 4,047In Stock	Mfr. Part No. 3471 Mouser Part No 534-3471	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .250" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	4,047In Stock	$0.558 $0.442 $0.396 $0.335 View $0.277 $0.253 $0.227 $0.215	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .375" 3472 Keystone Electronics 1: $0.653 400In Stock	Mfr. Part No. 3472 Mouser Part No 534-3472	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .375" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	400In Stock	$0.653 $0.517 $0.462 $0.392 View $0.325 $0.296 $0.271 $0.252	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers 2.00 Rd Clr hle spcr 250 OD #8 Alum 3477 Keystone Electronics 1: $2.76 644In Stock	Mfr. Part No. 3477 Mouser Part No 534-3477	Keystone Electronics	Standoffs & Spacers 2.00 Rd Clr hle spcr 250 OD #8 Alum Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	644In Stock	$2.76 $2.15 $1.92 $1.70 View $1.29 $1.18	Min.: 1 Mult.: 1	Spacers	Round	50.8 mm	Aluminum	6.35 mm	Iridite	Female / Female	Bulk