PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WA22-8CAWasher,lock

Ambac International Corporation Div Ambac International · NSN 5310-00-276-2747 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-276-2747 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-276-2747. Primary manufacturer part number: WA22-8CA.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
  • Material Thickness: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OVERALL
  • Material: STEEL OVERALL
  • Outside Diameter: 0.466 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Style Designator: FLAT INTERNAL TEETH
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-276-2747, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ambac International Corporation Div Ambac International. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-276-2747
Primary Part NumberWA22-8CA
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAmbac International Corporation Div Ambac International
StatusCANCELLED
Hole Diameter0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
Material Thickness0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL OVERALL
Outside Diameter0.466 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Style DesignatorFLAT INTERNAL TEETH
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4730-00-014-2432SAE J512 4 040110B INTERCHANGEABLE
Inverted Nut,tube Coupling
Sae International Dba Sae International
6125-00-028-673828148 INTERCHANGEABLE
Motor-Generator
Ryan Equipment Co Inc
6150-00-784-92461089071 INTERCHANGEABLE
Wiring Harness
Chrysler Realty Company Llc Dba Daimler Chrysler
4130-00-789-104226543-1 INTERCHANGEABLE
Cooling Coil,air,duct Type
Triumph Thermal Systems - Maryland, Inc.
5930-01-048-5187235174-4 INTERCHANGEABLE
Switch,code Indicating Wheel
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5865-01-671-6829121400 INTERCHANGEABLE
Acoustic Device
Ultra Electronics Ocean Systems Inc.
5315-01-719-050728148 INTERCHANGEABLE
Pin,straight,headless
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
28148 Drs Environmental Systems Inc (USA)
1214-00 Itw Shakeproof Automotive Products (USA)
WA22-8CA PRIMARY Ambac International Corporation Div Ambac International (USA)
28148 Davey Compressor Co Div of Keco Industries Inc (USA)
107003-514 PRIMARY Raytheon Company (USA)
Related Parts
4730-00-014-2432INTERCHANGEABLE
INVERTED NUT,TUBE COUPLING
SAE J512 4 040110B
6125-00-028-6738INTERCHANGEABLE
MOTOR-GENERATOR
28148
6150-00-784-9246INTERCHANGEABLE
WIRING HARNESS
1089071
4130-00-789-1042INTERCHANGEABLE
COOLING COIL,AIR,DUCT TYPE
26543-1
5930-01-048-5187INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
235174-4
5865-01-671-6829INTERCHANGEABLE
ACOUSTIC DEVICE
121400
5315-01-719-0507INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
28148

Frequently Asked Questions

What is NSN 5310-00-276-2747?

NSN 5310-00-276-2747 is a Washer,lock, manufactured by Ambac International Corporation Div Ambac International, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-276-2747?

NSN 5310-00-276-2747 has 5 cross-referenced part numbers: 28148 (Drs Environmental Systems Inc), 1214-00 (Itw Shakeproof Automotive Products), WA22-8CA (Ambac International Corporation Div Ambac International), 28148 (Davey Compressor Co Div of Keco Industries Inc), 107003-514 (Raytheon Company).

What NSN replaces 5310-00-276-2747?

There are 7 known substitutes for 5310-00-276-2747: 4730-00-014-2432, 6125-00-028-6738, 6150-00-784-9246 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WA22-8CA?

Key specifications for WA22-8CA: Hole Diameter: 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Material Thickness: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN; Surface Treatment: CADMIUM OVERALL; Material: STEEL OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-276-2747 still in active supply?

NSN 5310-00-276-2747 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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