PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6371Washer,flat

Norfolk Naval Shipyard · NSN 5310-00-262-2305 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-2305 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-2305. Primary manufacturer part number: 6371.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.438 INCHES NOMINAL IN
  • Material: COPPER ALLOY 938 OVERALL
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.21875 INCHES MINIMUM AND 0.22175 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 938 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-262-2305, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Norfolk Naval Shipyard. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-262-2305
Primary Part Number6371
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNorfolk Naval Shipyard
StatusACTIVE
Overall Diameter1.438 INCHES NOMINAL IN
MaterialCOPPER ALLOY 938 OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.21875 INCHES MINIMUM AND 0.22175 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Hole Diameter1.001 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-050-5527 INTERCHANGEABLE
Pin,straight,headless
5340-00-163-26136371 INTERCHANGEABLE
Bumper
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
8345-00-233-2958 INTERCHANGEABLE
Flag,national
6150-00-249-69156371 INTERCHANGEABLE
Lead,storage Battery
893 Mfg, Llc
5910-00-479-6665 INTERCHANGEABLE
Capacitor,variable,air Dielectri
5120-00-812-42336371 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Wta Tool Llc
2040-00-937-5904 INTERCHANGEABLE
Connection,hull
5330-01-035-18056371 INTERCHANGEABLE
Gasket
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
4730-01-056-88031106-1 INTERCHANGEABLE
Tee,pipe
Grinnell Corp
5950-01-240-6454648Z1474-1 INTERCHANGEABLE
Transformer,radio Frequency
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
Cross-Reference Index
Part NumberManufacturer
6371 Norfolk Naval Shipyard (USA)
DA6371 Norfolk Naval Shipyard (USA)
Related Parts
5315-00-050-5527INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5340-00-163-2613INTERCHANGEABLE
BUMPER
6371
8345-00-233-2958INTERCHANGEABLE
FLAG,NATIONAL
6150-00-249-6915INTERCHANGEABLE
LEAD,STORAGE BATTERY
6371
5910-00-479-6665INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
5120-00-812-4233INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
6371
2040-00-937-5904INTERCHANGEABLE
CONNECTION,HULL
5330-01-035-1805INTERCHANGEABLE
GASKET
6371
4730-01-056-8803INTERCHANGEABLE
TEE,PIPE
1106-1
5950-01-240-6454INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
648Z1474-1
5950-01-279-8163INTERCHANGEABLE
REACTOR
5985-01-329-7762INTERCHANGEABLE
WAVEGUIDE ASSEMBLY

Frequently Asked Questions

What is NSN 5310-00-262-2305?

NSN 5310-00-262-2305 is a Washer,flat, manufactured by Norfolk Naval Shipyard, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-262-2305?

NSN 5310-00-262-2305 has 2 cross-referenced part numbers: 6371 (Norfolk Naval Shipyard), DA6371 (Norfolk Naval Shipyard).

What NSN replaces 5310-00-262-2305?

There are 12 known substitutes for 5310-00-262-2305: 5315-00-050-5527, 5340-00-163-2613, 8345-00-233-2958 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6371?

Key specifications for 6371: Overall Diameter: 1.438 INCHES NOMINAL IN; Material: COPPER ALLOY 938 OVERALL; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Peripheral Shape Style: ROUND. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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