Product Details | FLAT WASHER

5310-00-660-3372 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: NAS620A4L, 3100740180, 310-0740-180, 5310-00-660-3372, 00-660-3372, 5310006603372, 006603372

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-660-3372

Drawings & Photos | NSN 5310-00-660-3372


Demand History | NSN 5310-00-660-3372

Part Number Request Date QTY Origin
NAS620A4L 2025-02-56 42 Canada
NAS620A4L 2021-08-230 1680 IN
NAS620A4L 2021-02-53 28000 IN
NAS620A4L 2021-02-53 28000 IN
NAS620A4L 2020-06-164 380 US
NAS620A4L 2019-02-35 380 US
NAS620A4L 2017-04-95 4 India
5310-00-660-3372 2009-06-160 1650 DIBBS
5310-00-660-3372 2008-12-345 540 DIBBS
NAS620A4L 2008-10-297 600 United States

Cross Reference | NSN 5310-00-660-3372

Part Number Cage Code Manufacturer
310-0740-180 13499 ROCKWELL COLLINS, INC. DBA GOVERNMENT SYSTEMS
5310006603372 SCY13 E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES
NAS620A4L 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5310-00-660-3372

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 5052 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.209 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.016 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 5310-00-660-3372

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:AItem does not contain precious metal
Criticality Code:FThe item is an Aviation Critical Safety Item/Flight Safety Critical Aircraft Part ((ACSI/FSCAP).
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating U 50
Less than truck load rating W Rating Variable
Water commodity Code 573 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable