NSN 5310-01-641-2497 · NIIN 016412497 · Part number 782-7666263 ITEM 34
Naval Sea Systems Command · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 53711
Government record, cited
NSN 5310-01-641-2497 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-641-2497. Manufacturer of record part number: 782-7666263 ITEM 34.
Also searched as5310-01-641-2497 ·
5310016412497 ·
NIIN 016412497 ·
01-641-2497 ·
FSC 5310 Nuts and Washers · CAGE 53711 · 782-7666263 ITEM 34 · 782-7666263
The Washer,flat, cataloged under National Stock Number 5310-01-641-2497, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-641-2497
Primary Part Number
782-7666263 ITEM 34
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Overall Diameter
2.250 INCHES NOMINAL IN
Cross-Sectional Shape Style
RECTANGULAR
Peripheral Shape Style
ROUND
Material
COPPER ALLOY OVERALL
Center Hole Shape Style
ROUND
Hole Diameter
1.062 INCHES NOMINAL IN
Thickness
0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5305-01-641-6066295A574C3S06-N16POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Sae International Dba Sae International
5305-01-641-7037J2484CCSF4-12CPOSSIBLE MATCH
SCREW,MACHINE
Possible match (shared part number)Sae International Dba Sae International
5315-01-644-2061782-7666263 ITEM 4POSSIBLE MATCH
KEY,MACHINE
Possible match (shared part number)Naval Sea Systems Command
5315-01-644-2063782-7666263 ITEM 6POSSIBLE MATCH
PIN,STRAIGHT,HEADLESS
Possible match (shared part number)Naval Sea Systems Command
5315-01-644-2070782-7666263 ITEM 3POSSIBLE MATCH
KEY,MACHINE
Possible match (shared part number)Naval Sea Systems Command
5340-01-648-2304782-7666263 ITEM 60POSSIBLE MATCH
ROD,STRAIGHT,HEADLESS
Possible match (shared part number)Naval Sea Systems Command
5310-01-648-3982782-7666263 ITEM 67POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)Naval Sea Systems Command
5306-01-648-4073782-7666263 ITEM 115POSSIBLE MATCH
BOLT,SHOULDER
Possible match (shared part number)Naval Sea Systems Command
5342-01-648-4488782-7666263 ITEM 110POSSIBLE MATCH
DOG,DOOR-HATCH
Possible match (shared part number)Naval Sea Systems Command
NSN 5310-01-641-2497 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-641-2497?
NSN 5310-01-641-2497 has 1 manufacturer part number on file: 782-7666263 ITEM 34 (Naval Sea Systems Command).
What NSN replaces 5310-01-641-2497?
9 possible matches (shared part number, not a government interchangeability claim): 5305-01-641-6066, 5305-01-641-7037, 5315-01-644-2061. Verify interchangeability with system specifications before substitution.
What are the specifications of 782-7666263 ITEM 34?
Key specifications for 782-7666263 ITEM 34: Overall Diameter: 2.250 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: WASHER. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-641-2497 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.