Product Details | SHOULDERED AND RECESSED WASHER

5310-01-131-2957 A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use BEARING, SLEEVE; BUSHING, SLEEVE; or SPACER, SLEEVE. Excludes INSULATOR, WASHER and thrust type washers.

Part Alternates: 10109599 , 74A1106812001, 74A110681-2001, 5310-01-131-2957, 01-131-2957, 5310011312957, 011312957

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 07 MAY 1982 01-131-2957

Cross Reference | NSN 5310-01-131-2957

Part Number Cage Code Manufacturer
74A110681-2001 1U854 TRIUMPH STRUCTURES - WICHITA, INC.
74A110681-2001 25989 STEELVILLE MANUFACTURING CO.
74A110681-2001 76301 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 5310-01-131-2957

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 7075 OVERALL
HOLE DIAMETER 0.312 INCHES MINIMUM AND 0.319 INCHES MAXIMUM
SHOULDER DIAMETER 1.750 INCHES NOMINAL
OUTSIDE DIAMETER 2.900 INCHES NOMINAL
RECESS DIAMETER 0.375 INCHES MINIMUM AND 0.405 INCHES MAXIMUM
SHOULDER HEIGHT 0.140 INCHES NOMINAL
RECESS ANGLE 90.0 DEGREES NOMINAL
SPECIAL FEATURES BEARING SURFACE CONVEX 3.000 IN. RADIUS
MANUFACTURERS CODE 76301
DESIGN CONTROL REFERENCE 74A110681-2001

Restrictions/Controls & Freight Information | NSN 5310-01-131-2957

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.
Category Code Description
NMF Description 194120 WASHERS/GASKETS/PCKG DVCS NOI
Less than car load rating
Less than truck load rating W Rating Variable
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 5310-01-131-2957

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each