5310-01-363-1740, WASHER,FLAT

National Stock Number:
5310-01-363-1740

Federal Supply Class:
5310

National Item Identification Number:
013631740

Description:
WASHER,FLAT

Detail:
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.

Manufacturer Information:

25976R1	338X5	ND DEFENSE LLC
25976R1	89346	NAVISTAR INTL CORP TRUCK BR OHIO PLANT
30186R1	338X5	ND DEFENSE LLC
ESP-F-16.101-GS	338X5	ND DEFENSE LLC
ESP-F-16.104-PP	338X5	ND DEFENSE LLC
30186R1	89346	NAVISTAR INTL CORP TRUCK BR OHIO PLANT

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.649 INCHES MINIMUM AND 0.686 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	CEMS A-0, PART I, 1040 TO 1065 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER,LOCK .656X1.312X .150 P
PERIPHERAL SHAPE STYLE	ROUND
PROPRIETARY CHARACTERISTICS	PACS
OVERALL DIAMETER	1.292 INCHES MINIMUM AND 1.332 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	CEMS G-1, CLASS B2 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE OVERALL
THICKNESS	0.138 INCHES MINIMUM AND 0.162 INCHES MAXIMUM

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