PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203481Spring,helical,compression

Valcor Engineering Corporation · NSN 5360-00-509-4996 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-509-4996 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-509-4996. Primary manufacturer part number: 203481.
Features
  • Spring,helical,compression — FSC 5360
  • Coil Helix Direction: LEFT-HANDLEFT-HAND
  • Surface Treatment: NICKEL OVERALLNICKEL OVERALL
  • Spring Free Length: 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDSSPRING END,SQUARED AND GROUND BOTH ENDS
  • Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL UNS K08500 OVERALL
  • Spring Length Under Load: 0.406 INCHES NOMINAL0.406 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Uns K08500 Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-509-4996, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Valcor Engineering Corporation. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-509-4996
Primary Part Number203481
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerValcor Engineering Corporation
StatusACTIVE
Coil Helix DirectionLEFT-HANDLEFT-HAND
Surface TreatmentNICKEL OVERALLNICKEL OVERALL
Spring Free Length0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
End StyleSPRING END,SQUARED AND GROUND BOTH ENDSSPRING END,SQUARED AND GROUND BOTH ENDS
Material Document and ClassificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL UNS K08500 OVERALL
Spring Length Under Load0.406 INCHES NOMINAL0.406 INCHES NOMINAL IN
Style DesignatorCYLINDRICALCYLINDRICAL
Coil Quantity66
Inside Diameter0.260 INCHES MINIMUM AND 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM0.270 INCHES MAXIMUM IN
Load Rating22.250 POUNDS NOMINAL22.250 POUNDS NOMINAL LBS
Spring Free Outside Diameter0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5342-00-112-2254 INTERCHANGEABLE
Handle and Catch
5330-00-291-7448203481 INTERCHANGEABLE
Gasket
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5998-01-281-4114 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
203481 Kidde-Fenwal, Llc (USA)
203481 PRIMARY Valcor Engineering Corporation (USA)
Related Parts
5342-00-112-2254INTERCHANGEABLE
HANDLE AND CATCH
5330-00-291-7448INTERCHANGEABLE
GASKET
203481
5998-01-281-4114INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY

Frequently Asked Questions

What is NSN 5360-00-509-4996?

NSN 5360-00-509-4996 is a Spring,helical,compression, manufactured by Valcor Engineering Corporation, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-509-4996?

NSN 5360-00-509-4996 has 2 cross-referenced part numbers: 203481 (Kidde-Fenwal, Llc), 203481 (Valcor Engineering Corporation).

What NSN replaces 5360-00-509-4996?

There are 3 known substitutes for 5360-00-509-4996: 5342-00-112-2254, 5330-00-291-7448, 5998-01-281-4114. Verify interchangeability with system specifications before substitution.

What are the specifications of 203481?

Key specifications for 203481: Coil Helix Direction: LEFT-HANDLEFT-HAND; Surface Treatment: NICKEL OVERALLNICKEL OVERALL; Spring Free Length: 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDSSPRING END,SQUARED AND GROUND BOTH ENDS. 12 total characteristics are documented in the Federal Logistics Information System.

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