5320-00-971-7901 RIVET,BLIND Index 5310-00-971-7905 WASHER,FLAT

National Stock Number:
5310-00-971-7904

Federal Supply Class:
5310

National Item Identification Number:
009717904

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:
10W032B15D380JRC1NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
10W032B15D3876823NORTHROP GRUMMAN SYSTEMS CORPORATION
10W032B15D3879U29NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORBLACK OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
OVERALL DIAMETER0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION-QQ-A-2505 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTOXIDE FILM OVERALL
THICKNESS0.032 INCHES NOMINAL


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