National Item Identification Number
01-137-8983
National Stock Number
Item Name
WASHER,FLAT
Federal Supply Class
5310
Referenced on: http://aviationandaccessories.tpub.com//TM-55-4920-428-30P/css/TM-55-4920-428-30P_52.htm
Referenced on: http://aviationandaccessories.tpub.com//TM-55-4920-428-30P/css/TM-55-4920-428-30P_54.htm
Referenced on: http://www.tpub.com/content/trucks2.5tonv1-2/TM-9-2320-365-24P/css/TM-9-2320-365-24P_1054.htm
Referenced on: http://www.tpub.com/content/trucks2.5tonv1-2/TM-9-2320-365-24P/css/TM-9-2320-365-24P_886.htm
Referenced on: http://www.tpub.com/content/trucks2.5tonv1-2/TM-9-2320-365-24P/css/TM-9-2320-365-24P_995.htmDescription
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.
Commercial and Government Entity Code (Supplier Data)
NSN (National Stock Number) 5310-01-137-8983, 5310011378983 NIIN (National Identification Number) 01-137-8983, 011378983
Part Numbers (Reference Numbers)
AN960D1216
AN960KD1216
FFW92
NAS1149D1290K
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
ALUMINUM ALLOY 2024 OVERALL
QQ-A-250/5,T3 OR T4 FED SPEC SINGLE MATERIAL RESPON