Product Details | FLAT WASHER

5310-00-977-4003 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.

Part Alternates: 12874492, 1287449-2, 5310-00-977-4003, 00-977-4003, 5310009774003, 009774003

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 12-OCT-66 00-977-4003

Drawings & Photos | NSN 5310-00-977-4003


Cross Reference | NSN 5310-00-977-4003

Part Number Cage Code Manufacturer
1287449-2 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT
1287449-2 D9182 BOSCH REXROTH GMBH LOHMANN +STOLTERFOHT
306-001-0002 70318 ALLMETAL SCREW PRODUCTS CORP DBA ALL METAL SCREW PRODUCTS
306-001-0002 95542 NORTHROP GRUMMAN SYSTEMS CORPORATION
306-001-0002 C1834 KONTRON AG

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Technical Data | NSN 5310-00-977-4003

Characteristic Specifications
MATERIAL STEEL COMP 302 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.149 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM
III HEAT TREATMENT AS FABRICATED
MANUFACTURERS CODE 10001
DESIGN CONTROL REFERENCE 1287449-2

Restrictions/Controls & Freight Information | NSN 5310-00-977-4003

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information