Product Details | FLAT WASHER

5310-01-312-3292 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: FFW92, FF-W-92, LP410A, L-P-410A, 16206712, 1620671-2, 5310-01-312-3292, 01-312-3292, 5310013123292, 013123292

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 14 DEC 1989 01-312-3292

Drawings & Photos | NSN 5310-01-312-3292


Demand History | NSN 5310-01-312-3292

Part Number Request Date QTY Origin
FFW92 2025-06-161 16 United States
FF-W-92 2023-01-18 60 Saudi Arabia
LP410A 2018-10-288 2 US
LP410A 2018-08-240 2 US
LP410A 2018-08-229 1 US
FFW92 2018-07-207 2 United States
LP410A 2016-11-308 4 United States
FFW92 2016-08-217 21 US
FFW92 2011-10-304 495 United States
LP410A 2009-03-77 40 United Kingdom

Cross Reference | NSN 5310-01-312-3292

Part Number Cage Code Manufacturer
1620671-2 56232 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
FF-W-92 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
L-P-410A 81361 EDGEWOOD CHEMICAL BIOLOGICAL CENTER ECBC

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Technical Data | NSN 5310-01-312-3292

Characteristic Specifications
MATERIAL PLASTIC POLYAMIDE OVERALL
HOLE DIAMETER 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.0687 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA A TYPE AND H CLASS
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FF-W-92

Restrictions/Controls & Freight Information | NSN 5310-01-312-3292

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:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
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 194160 WASHER OR GASKETS, IRON OR STEEL,
Less than car load rating
Less than truck load rating U 50.0
Water commodity Code 713 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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

Management | NSN 5310-01-312-3292

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative