Product Details | FLAT WASHER

5310-00-298-9190 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: FFW92A, RA10587, WA2249, 3060050006, 306-005-0006, 5310-00-298-9190, 00-298-9190, 5310002989190, 002989190

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-298-9190

Drawings & Photos | NSN 5310-00-298-9190


Demand History | NSN 5310-00-298-9190

Part Number Request Date QTY Origin
5310-00-298-9190 2025-10-294 417 DIBBS
5310-00-298-9190 2025-09-258 50 DIBBS
5310-00-298-9190 2025-09-258 50 DIBBS
5310-00-298-9190 2025-09-250 50 DIBBS
5310-00-298-9190 2025-08-216 19 DIBBS
5310-00-298-9190 2025-07-208 19 DIBBS
5310-00-298-9190 2019-04-106 200 DIBBS
5310-00-298-9190 2018-07-199 200 DIBBS
5310-00-298-9190 2018-05-121 18 DIBBS
5310-00-298-9190 2018-05-121 218 DIBBS
5310-00-298-9190 2014-09-259 600 DIBBS
5310-00-298-9190 2014-06-170 83 DIBBS
5310-00-298-9190 2014-06-170 300 DIBBS
5310-00-298-9190 2014-05-141 81 DIBBS
FFW92A 2013-10-294 340 us
5310-00-298-9190 2013-06-174 15 DIBBS
5310-00-298-9190 2009-12-349 1156 DIBBS
5310-00-298-9190 2008-11-316 1178 DIBBS
5310-00-298-9190 2008-03-84 100 DIBBS

Cross Reference | NSN 5310-00-298-9190

Part Number Cage Code Manufacturer
306-005-0006 95542 NORTHROP GRUMMAN SYSTEMS CORPORATION
FFW92A 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
RA10587 48ZY0 MAS COMPONENTS AND COATINGS LLC DIV MAS COMPONENTS & COATINGS LLC
RA10587 75324 KILGORE FLARES COMPANY LLC
RA10587 93712 ALLIANT DEFENSE ELECTRONICS SYSTEMS INC DBA LUNDY TECHNICAL CENTER
WA2249 08484 BREEZE-EASTERN CORPORATION

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Technical Data | NSN 5310-00-298-9190

Characteristic Specifications
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER 0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.0295 INCHES MINIMUM AND 0.0325 INCHES MAXIMUM
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFW92A

Restrictions/Controls & Freight Information | NSN 5310-00-298-9190

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 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
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

Management | NSN 5310-00-298-9190

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
Purchasing QTY
UOM
Q
EA : Each