PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10505776Washer,flat

General Dynamics Land Systems Canadacorp · NSN 5310-00-274-4546 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-274-4546 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-274-4546. Primary manufacturer part number: 10505776.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.0548 INCHES MINIMUM AND 0.0648 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
  • Hole Diameter: 0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-421 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-274-4546, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Dynamics Land Systems Canadacorp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-274-4546
Primary Part Number10505776
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Dynamics Land Systems Canadacorp
StatusCANCELLED
Thickness0.0548 INCHES MINIMUM AND 0.0648 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Hardness Rating32.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
Hole Diameter0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-421 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Center Hole Shape StyleROUND
Features ProvidedCASEHARDENED
Surface TreatmentCADMIUM OVERALL
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
2940-00-382-8003L21 INTERCHANGEABLE
Line
Honeywell International Inc Dba Honeywell Div Consumer Products Group
2040-00-388-0798 INTERCHANGEABLE
Strut
5355-00-521-6925 INTERCHANGEABLE
Dial,control
5930-00-788-31363249 INTERCHANGEABLE
Switch,rotary
Ballantine Laboratories Inc
5360-00-845-7430 INTERCHANGEABLE
Spring,helical,extension
5310-00-958-8240R54092 INTERCHANGEABLE
Nut,rotation
Neac Compressor Service Usa Inc
5998-01-210-20792121651-301 INTERCHANGEABLE
Extender Card,electronic Test
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
5975-01-480-13023249 INTERCHANGEABLE
Adapter,electrical Conduit
Heyco Inc Dba Heyco Products
4730-01-480-3473CC-0009654 INTERCHANGEABLE
Clamp,hose
Independent Rough Terrain Center Llc
Cross-Reference Index
Part NumberManufacturer
Z095003249 Oshkosh Defense Llc (USA)
6AX1 Oshkosh Defense Llc (USA)
6AX1 Oshkosh Corp (USA)
10505776 PRIMARY General Dynamics Land Systems Canadacorp (CAN)
Z095003249 Oshkosh Corp (USA)
3249 Prestolite Electric Inc (USA)
3249 PRIMARY Prestolite Electric Inc (USA)
9B6867 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
2940-00-382-8003INTERCHANGEABLE
LINE
L21
2040-00-388-0798INTERCHANGEABLE
STRUT
5355-00-521-6925INTERCHANGEABLE
DIAL,CONTROL
5930-00-788-3136INTERCHANGEABLE
SWITCH,ROTARY
3249
5360-00-845-7430INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
5310-00-958-8240INTERCHANGEABLE
NUT,ROTATION
R54092
5998-01-210-2079INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
2121651-301
5975-01-480-1302INTERCHANGEABLE
ADAPTER,ELECTRICAL CONDUIT
3249
4730-01-480-3473INTERCHANGEABLE
CLAMP,HOSE
CC-0009654

Frequently Asked Questions

What is NSN 5310-00-274-4546?

NSN 5310-00-274-4546 is a Washer,flat, manufactured by General Dynamics Land Systems Canadacorp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-274-4546?

NSN 5310-00-274-4546 has 8 cross-referenced part numbers: Z095003249 (Oshkosh Defense Llc), 6AX1 (Oshkosh Defense Llc), 6AX1 (Oshkosh Corp), 10505776 (General Dynamics Land Systems Canadacorp), Z095003249 (Oshkosh Corp) and 3 more.

What NSN replaces 5310-00-274-4546?

There are 9 known substitutes for 5310-00-274-4546: 2940-00-382-8003, 2040-00-388-0798, 5355-00-521-6925 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10505776?

Key specifications for 10505776: Thickness: 0.0548 INCHES MINIMUM AND 0.0648 INCHES MAXIMUM IN; Material: STEEL OVERALL; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM; Hole Diameter: 0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-274-4546 still in active supply?

NSN 5310-00-274-4546 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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