National Item Identification Number

00-861-1406

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)

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01843

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AMBAC INTERNATIONAL CORPORATION
910 SPEARS CREEK COURT
ELGIN
SC
29045
803-462-9625

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76040

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MACK TRUCKS INC
PARTS OPN
2100 MACK BLVD
M
ALLENTOWN
PA
18105
610-709-3011

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19207

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NSN (National Stock Number) 5310-00-861-1406, 5310008611406 NIIN (National Identification Number) 00-861-1406, 008611406

Part Numbers (Reference Numbers)

GA7716
GA7716
590GB1127
7748837

Required Categories

MATERIAL
HARDNESS RATING
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMET

Required Description

COPPER OVERALL
40.0 ROCKWELL F NOMINAL
0.382 INCHES MINIMUM AND
0.387 INCHES