National Item Identification Number

01-320-7176

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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08530

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RELIANCE MICA COMPANY INC.
341 39TH STREET
BROOKLYN
NY
11232
718-788-0282

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17446

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95548

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MORRIS J I CO
394 ELM ST
70
SOUTHBRIDGE
MA
01550
508-764-4394

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97942

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Reference Numbers (Part Numbers)

1JA2634H37
1JA2634H37
1JA2634H37
1JA2634H37
1JA2634H37

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT

Required Description

STEEL COMP 302 OVERALL
QQ-S-766,COND A,FINISH NO. 2B FED SPEC SINGLE MATERIAL R