PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5154400Washer,key

Rolls-Royce Solutions America Inc · NSN 5310-00-639-4037 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-639-4037 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-639-4037. Primary manufacturer part number: 5154400.
Features
  • Washer,key — FSC 5310
  • Style Designator: KEY
  • External Prebent Key Angle: 45.0 DEGREES NOMINAL
  • Outside Diameter: 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN
  • Material Thickness: 0.1544 INCHES MINIMUM AND 0.1744 INCHES MAXIMUM IN
  • External Prebent Key Width: 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
  • External Prebent Key Length: 0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-639-4037, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-639-4037
Primary Part Number5154400
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRolls-Royce Solutions America Inc
StatusCANCELLED
Style DesignatorKEY
External Prebent Key Angle45.0 DEGREES NOMINAL
Outside Diameter1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN
Material Thickness0.1544 INCHES MINIMUM AND 0.1744 INCHES MAXIMUM IN
External Prebent Key Width0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
Hardness Rating32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
External Prebent Key Length0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Hole Diameter0.506 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3750-01-054-2985 INTERCHANGEABLE
Shoulder Strap Assembly
5360-01-231-0483A515-40 INTERCHANGEABLE
Spring,helical,compression
Circor Aerospace, Inc. Dba Circor Aerospace Inc
5998-01-299-2152515010 INTERCHANGEABLE
Circuit Card Assembly
U S Dept of Transportation Federal Aviation Administration
Cross-Reference Index
Part NumberManufacturer
5154400 H20 Tank Inc U S Motors Div (USA)
515400 Zf Industrieantriebe Witten Gmbh (DEU)
5154400 General Motors Corp (USA)
5154400 General Motors Llc Dba General Motors Llc (USA)
5154400 PRIMARY Rolls-Royce Solutions America Inc (USA)
PC5154400 Power Components (deutschland) Gmbh (DEU)
Related Parts
3750-01-054-2985INTERCHANGEABLE
SHOULDER STRAP ASSEMBLY
5360-01-231-0483INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A515-40
5998-01-299-2152INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
515010

Frequently Asked Questions

What is NSN 5310-00-639-4037?

NSN 5310-00-639-4037 is a Washer,key, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-639-4037?

NSN 5310-00-639-4037 has 6 cross-referenced part numbers: 5154400 (H20 Tank Inc U S Motors Div), 515400 (Zf Industrieantriebe Witten Gmbh), 5154400 (General Motors Corp), 5154400 (General Motors Llc Dba General Motors Llc), 5154400 (Rolls-Royce Solutions America Inc) and 1 more.

What NSN replaces 5310-00-639-4037?

There are 3 known substitutes for 5310-00-639-4037: 3750-01-054-2985, 5360-01-231-0483, 5998-01-299-2152. Verify interchangeability with system specifications before substitution.

What are the specifications of 5154400?

Key specifications for 5154400: Style Designator: KEY; External Prebent Key Angle: 45.0 DEGREES NOMINAL; Outside Diameter: 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN; Material Thickness: 0.1544 INCHES MINIMUM AND 0.1744 INCHES MAXIMUM IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-639-4037 still in active supply?

NSN 5310-00-639-4037 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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