National Item Identification Number
00-304-9669
National Stock Number
Item Name
WASHER,FLAT
Federal Supply Class
5310
Description
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)
31633
33615
62224
92830
ASSOCIATED SPRING BARNES GROUP INC
18 MAIN ST
BRISTOL
CT
06010
860-582-9581
90536
LOCKHEED MARTIN CORPORATION
DBA LOCKHEED MARTIN
3333 PILOT KNOB RD
SAINT PAUL
MN
55121
651-456-3420
Reference Numbers (Part Numbers)
405599
405599
405599
405599
7216328-00
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
STEEL OVERALL
MIL-S-5059,TYPE 3,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERAL