PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5152939Seat,helical Compression Spring

Rolls-Royce Solutions America Inc · NSN 5340-00-363-8085 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-363-8085 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-363-8085. Primary manufacturer part number: 5152939.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Distance From End to First Step: 0.6250 INCHES NOMINAL IN
  • Bore Diameter: 0.3750 INCHES NOMINAL IN
  • End Diameter: 0.6580 INCHES MINIMUM IN
  • Features Provided: CASEHARDENED
  • Style Designator: SEAT
  • Design Type: SOLID
  • First Step Diameter: 0.8125 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-363-8085, is classified within Federal Supply Class 5340 (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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-363-8085
Primary Part Number5152939
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerRolls-Royce Solutions America Inc
StatusCANCELLED
Distance From End to First Step0.6250 INCHES NOMINAL IN
Bore Diameter0.3750 INCHES NOMINAL IN
End Diameter0.6580 INCHES MINIMUM IN
Features ProvidedCASEHARDENED
Style DesignatorSEAT
Design TypeSOLID
First Step Diameter0.8125 INCHES NOMINAL IN
MaterialSTEEL
Countersink Angle in Deg30.0
Chamfer Angle in Deg15.0
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
5310-00-515-29395152939 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Army, United States Department of the Dba Rock Island Arsenal Jmtc
Cross-Reference Index
Part NumberManufacturer
5152939 PRIMARY Rolls-Royce Solutions America Inc (USA)
5152939 Allis-Chalmers Corp (USA)
33489 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
5152939 General Motors Corp (USA)
Related Parts
5310-00-515-2939INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
5152939

Frequently Asked Questions

What is NSN 5340-00-363-8085?

NSN 5340-00-363-8085 is a Seat,helical Compression Spring, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-363-8085?

NSN 5340-00-363-8085 has 4 cross-referenced part numbers: 5152939 (Rolls-Royce Solutions America Inc), 5152939 (Allis-Chalmers Corp), 33489 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 5152939 (General Motors Corp).

What NSN replaces 5340-00-363-8085?

There is 1 known substitute for 5340-00-363-8085: 5310-00-515-2939. Verify interchangeability with system specifications before substitution.

What are the specifications of 5152939?

Key specifications for 5152939: Distance From End to First Step: 0.6250 INCHES NOMINAL IN; Bore Diameter: 0.3750 INCHES NOMINAL IN; End Diameter: 0.6580 INCHES MINIMUM IN; Features Provided: CASEHARDENED. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-363-8085 still in active supply?

NSN 5340-00-363-8085 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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