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12AN Bulkhead Adapter Aluminum Black 1/pkg, by REDHORSE PERFORMANCE, Man. Part # 924-12-2
Bulkhead Fitting Nut - 12 AN - Aluminum - Black Anodized - Each$7.30 -
12AN Bulkhead Gaskets White 8832 Series, by REDHORSE PERFORMANCE, Man. Part # 8832-12-03
Sealing Washer - 8832 Series - 12 AN - 1.606 in OD - 1.066 in ID - 0.126 in Thick - Nylon - Pair$6.71 -
AEROMOTIVE
12an Nylon Washers (2) , by AEROMOTIVE, Man. Part # 15047
Sealing Washer - 12 AN - 1.377 in OD - 1.15 in ID - 0.06 in Thick - Nylon - Pair$7.15 -
on sale!44% off
FRAGOLA
12mm Alm Crush Washers 10pk, by FRAGOLA, Man. Part # 999212
Crush Washer - 12 mm ID - Aluminum - Natural - Set of 10$5.60$9.99$9.99 -
12mm Flat Washer 1pk 22.2mm (7/8) OD, by OPTITORQUE TECHNOLOGIES LLC, Man. Part # 10411
Flat Washer - 12 mm ID - 0.875 in OD - 0.125 in Thick - Steel - Black Oxide - Each$1.19 -
on sale!13% off
ARP
12mm ID Washers 10pk .875 OD Chamfer, by ARP, Man. Part # 200-8551
Flat Washer - Special Purpose - 12 mm ID - 0.875 in OD - 3 mm Thick - Chromoly - Black Oxide - Set of 10$9.53$10.99$10.99