Product Details | LOCK WASHER

5310-01-178-1951 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: 91100303, 91100303N, 5310-01-178-1951, 01-178-1951, 5310011781951, 011781951

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 02 MAY 1984 01-178-1951

Drawings & Photos | NSN 5310-01-178-1951


Demand History | NSN 5310-01-178-1951

Part Number Request Date QTY Origin
91100303N 2024-03-82 234 DIBBS
91100303N 2024-03-74 234 DIBBS
91100303N 2020-11-308 97 DIBBS
5310-01-178-1951 2014-03-77 127 DIBBS
5310-01-178-1951 2012-08-237 36 DIBBS
5310-01-178-1951 2012-08-229 36 DIBBS

Cross Reference | NSN 5310-01-178-1951

Part Number Cage Code Manufacturer
91100303 82796 COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE
91100303N 82796 COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE

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Technical Data | NSN 5310-01-178-1951

Characteristic Specifications
MATERIAL STEEL OVERALL
HARDNESS RATING 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR 100 FLAT EXTERNAL TEETH
HOLE DIAMETER 0.768 INCHES MINIMUM AND 0.795 INCHES MAXIMUM
OUTSIDE DIAMETER 1.220 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
MATERIAL THICKNESS 0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5310-01-178-1951

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 5310-01-178-1951

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