Product Details | RECESSED WASHER

5310-00-023-4771 A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes WASHER, CONCAVE, RETAINER, PACKING, and thrust type washers. See also SPACER, SLEEVE; and SPACER, STEPPED.

Part Alternates: NAS12884W, NAS1288-4W, 10116498 , 408404, 4084-04, 5310-00-023-4771, 00-023-4771, 5310000234771, 000234771

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 19 APR 1968 00-023-4771

Drawings & Photos | NSN 5310-00-023-4771


Demand History | NSN 5310-00-023-4771

Part Number Request Date QTY Origin
5310-00-023-4771 2023-03-83 138 DIBBS
5310-00-023-4771 2023-03-75 138 DIBBS
5310-00-023-4771 2022-05-144 1238 DIBBS
5310-00-023-4771 2021-02-55 879 DIBBS
5310-00-023-4771 2021-02-43 5 Canada
5310-00-023-4771 2020-04-93 800 DIBBS
5310-00-023-4771 2018-06-173 1 DIBBS-RFPs
NAS1288-4W 2016-07-211 10 JP
5310-00-023-4771 2012-06-164 880 DIBBS
5310-00-023-4771 2011-05-123 876 DIBBS
5310-00-023-4771 2010-05-138 366 DIBBS

Cross Reference | NSN 5310-00-023-4771

Part Number Cage Code Manufacturer
4084-04 019L2 MACLEAN-FOGG COMPANY DBA MAC LEAN-ESNA
4084-04 72962 HARVARD INDUSTRIES INC
NAS1288-4W 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5310-00-023-4771

Characteristic Specifications
MATERIAL STEEL COMP 601 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT NICKEL AND ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION AMS 2417 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2417 ASSN STD 2ND TREATMENT RESPONSE OVERALL
HARDNESS RATING 41.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR 15 RECESS
HOLE DIAMETER 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
OUTSIDE DIAMETER 0.457 INCHES MAXIMUM
RECESS DIAMETER 0.420 INCHES MINIMUM
MATERIAL THICKNESS 0.065 INCHES MINIMUM AND 0.095 INCHES MAXIMUM
RECESS ANGLE 90.0 DEGREES NOMINAL

Restrictions/Controls & Freight Information | NSN 5310-00-023-4771

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:UPrecious metal type is unknown
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 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 5310-00-023-4771

Category Code Description
Materiel Category and Inventory ManagerT Industrial Supplies (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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
Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation CodeSXSX:AF SICA RESIDUAL MMAC-OC-ALC
Price ValidationV The current standard price has been validated.
  • The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range.
  • The item was procured under open competition and under the competitive arena the price is considered fair and reasonable.
  • ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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
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