PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31439Spring,50 Caliber P

Kidde-Fenwal, Llc · NSN 1005-00-533-4191 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-00-533-4191 — this item is cataloged by the U.S. Government under National Stock Number 1005-00-533-4191. Primary manufacturer part number: 31439.
Features
  • Spring,50 Caliber P — FSC 1005
  • 2 verified cross-references
  • Primary manufacturer: Kidde-Fenwal, Llc
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Spring,50 Caliber P, cataloged under National Stock Number 1005-00-533-4191, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Kidde-Fenwal, Llc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSpring,50 Caliber P
FSC / FSG1005 — No Item Name Available (FSG 10)
ManufacturersKidde-Fenwal, Llc (CAGE 0KDP7); Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (CAGE 78062)
Technical Specifications
ParameterValue
NSN1005-00-533-4191
Primary Part Number31439
Item NameSpring,50 Caliber P
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerKidde-Fenwal, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2520-00-535-04733-14-39 INTERCHANGEABLE
Cap,dust,propeller Shaft
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
5930-01-323-111431439 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
4910-01-390-3446TC-70 INTERCHANGEABLE
Constrictor,bead Expanding,pneum
Myers Industries Inc Div Corporate
5315-01-528-3882314-39 INTERCHANGEABLE
Pin,spring
Perko Inc
Cross-Reference Index
Part NumberManufacturer
31439 Kidde-Fenwal, Llc (USA)
31439 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
2520-00-535-0473INTERCHANGEABLE
CAP,DUST,PROPELLER SHAFT
3-14-39
5930-01-323-1114INTERCHANGEABLE
SWITCH,FLOW
31439
4910-01-390-3446INTERCHANGEABLE
CONSTRICTOR,BEAD EXPANDING,PNEUM
TC-70
5315-01-528-3882INTERCHANGEABLE
PIN,SPRING
314-39

Frequently Asked Questions

What is NSN 1005-00-533-4191?

NSN 1005-00-533-4191 is a Spring,50 Caliber P, manufactured by Kidde-Fenwal, Llc, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-00-533-4191?

NSN 1005-00-533-4191 has 2 cross-referenced part numbers: 31439 (Kidde-Fenwal, Llc), 31439 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 1005-00-533-4191?

There are 4 known substitutes for 1005-00-533-4191: 2520-00-535-0473, 5930-01-323-1114, 4910-01-390-3446 and 1 more. Verify interchangeability with system specifications before substitution.

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