PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B20500-22Washer,lock

Kearsley Airways Ltd · NSN 5310-00-167-0660 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-167-0660 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-167-0660. Primary manufacturer part number: B20500-22.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
  • Outside Diameter: 0.296 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hole Diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
  • Departure From Cited Designator: AS MODIFIED BY MATERIAL SPEC
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-167-0660, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kearsley Airways Ltd. 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-167-0660
Primary Part NumberB20500-22
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerKearsley Airways Ltd
StatusCANCELLED
Material Thickness0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
Outside Diameter0.296 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hole Diameter0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
Departure From Cited DesignatorAS MODIFIED BY MATERIAL SPEC
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5310-00-568-44048105219 INTERCHANGEABLE
Washer,lock
Us Army Aviation and Missile Command
5310-00-576-0546MS35338-99 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5935-00-951-6611MS14PM1 INTERCHANGEABLE
Connector,plug,electrical
Souriau Usa, Inc. Dba Souriau Usa Inc
5925-01-337-8505 INTERCHANGEABLE
Circuit Breaker
3040-01-406-199917101 INTERCHANGEABLE
Lever,remote Control
Coffin Turbo Pump Inc
Cross-Reference Index
Part NumberManufacturer
B20500-22 Kearsley Airways Ltd (GBR)
AN935B8 Aeronautical Standards Group Dept of Navy and Air Force (USA)
MP360 Safran Electrical & Power Usa, Llc Dba Labinal Power Sysyems Use CAGE Code 81640 for Cataloging (USA)
20500-22 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
X7-8 Horizon Aerospace Llc Dba Magnetics Division (USA)
Related Parts
5310-00-568-4404INTERCHANGEABLE
WASHER,LOCK
8105219
5310-00-576-0546INTERCHANGEABLE
WASHER,LOCK
MS35338-99
5935-00-951-6611INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
MS14PM1
5925-01-337-8505INTERCHANGEABLE
CIRCUIT BREAKER
3040-01-406-1999INTERCHANGEABLE
LEVER,REMOTE CONTROL
17101

Frequently Asked Questions

What is NSN 5310-00-167-0660?

NSN 5310-00-167-0660 is a Washer,lock, manufactured by Kearsley Airways Ltd, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-167-0660?

NSN 5310-00-167-0660 has 5 cross-referenced part numbers: B20500-22 (Kearsley Airways Ltd), AN935B8 (Aeronautical Standards Group Dept of Navy and Air Force), MP360 (Safran Electrical & Power Usa, Llc Dba Labinal Power Sysyems Use CAGE Code 81640 for Cataloging), 20500-22 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), X7-8 (Horizon Aerospace Llc Dba Magnetics Division).

What NSN replaces 5310-00-167-0660?

There are 5 known substitutes for 5310-00-167-0660: 5310-00-568-4404, 5310-00-576-0546, 5935-00-951-6611 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B20500-22?

Key specifications for B20500-22: Material Thickness: 0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Outside Diameter: 0.296 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-167-0660 still in active supply?

NSN 5310-00-167-0660 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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