Product Details | LOCK WASHER

5310-01-178-1940 A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

Part Alternates: 81309760N, 91100011, 91100011N, 5310-01-178-1940, 01-178-1940, 5310011781940, 011781940

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 02 MAY 1984 01-178-1940

Drawings & Photos | NSN 5310-01-178-1940


Demand History | NSN 5310-01-178-1940

Part Number Request Date QTY Origin
81309760N 2024-07-206 229 DIBBS
91100011N 2024-07-206 229 DIBBS
91100011N 2023-10-284 172 DIBBS
91100011N 2021-12-351 215 DIBBS
91100011N 2021-11-318 215 DIBBS
5310-01-178-1940 2016-07-213 521 DIBBS
5310-01-178-1940 2016-04-95 128 DIBBS
5310-01-178-1940 2016-03-63 60 DIBBS
5310-01-178-1940 2016-02-55 60 DIBBS
5310-01-178-1940 2014-05-149 261 DIBBS
5310-01-178-1940 2014-03-79 157 DIBBS
5310-01-178-1940 2012-12-362 148 DIBBS
5310-01-178-1940 2012-11-325 148 DIBBS
5310-01-178-1940 2012-05-152 150 DIBBS
5310-01-178-1940 2008-09-262 417 DIBBS

Cross Reference | NSN 5310-01-178-1940

Part Number Cage Code Manufacturer
81309760N 82796 COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE
91100011 82796 COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE
91100011N 82796 COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE

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Technical Data | NSN 5310-01-178-1940

Characteristic Specifications
MATERIAL STEEL OVERALL
HARDNESS RATING 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR 108 SPLIT HELICAL-RIGHT HAND
HOLE DIAMETER 0.382 INCHES MINIMUM
OUTSIDE DIAMETER 0.683 INCHES MAXIMUM
MATERIAL THICKNESS 0.094 INCHES MINIMUM

Restrictions/Controls & Freight Information | NSN 5310-01-178-1940

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 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 576 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 5310-01-178-1940

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 CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
Q
EA : Each