PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40-343-1Spring,helical,compression

Cmbf, Llc Dba Cmbf Llc · NSN 5360-01-537-3171 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-01-537-3171 — this item is cataloged by the U.S. Government under National Stock Number 5360-01-537-3171. Primary manufacturer part number: 40-343-1.
Features
  • Spring,helical,compression — FSC 5360
  • Spring Free Length: 3.625 INCHES NOMINAL IN
  • Spring Solid Outside Diameter: 1.625 INCHES NOMINAL IN
  • Inside Diameter: 0.815 INCHES NOMINAL IN
  • Style Designator: CYLINDRICAL
  • Coil Helix Direction: LEFT-HAND
  • Material: STEEL OVERALL
  • 2 verified cross-references
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-01-537-3171, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cmbf, Llc Dba Cmbf Llc. Government technical data includes 6 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
NSN5360-01-537-3171
Primary Part Number40-343-1
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerCmbf, Llc Dba Cmbf Llc
StatusACTIVE
Spring Free Length3.625 INCHES NOMINAL IN
Spring Solid Outside Diameter1.625 INCHES NOMINAL IN
Inside Diameter0.815 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
Coil Helix DirectionLEFT-HAND
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-639-4823403431 INTERCHANGEABLE
Screw,machine
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5305-00-821-4675403431 INTERCHANGEABLE
Setscrew
Woodward, Inc. Div Fuel Systems and Controls
5360-00-928-351640-342 INTERCHANGEABLE
Spring,helical,compression
Cmbf, Llc Dba Cmbf Llc
Cross-Reference Index
Part NumberManufacturer
40-343-1 Motion Control Industries, Inc. (USA)
40-343-1 PRIMARY Cmbf, Llc Dba Cmbf Llc (USA)
Related Parts
5305-00-639-4823INTERCHANGEABLE
SCREW,MACHINE
403431
5305-00-821-4675INTERCHANGEABLE
SETSCREW
403431
5360-00-928-3516INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
40-342

Frequently Asked Questions

What is NSN 5360-01-537-3171?

NSN 5360-01-537-3171 is a Spring,helical,compression, manufactured by Cmbf, Llc Dba Cmbf Llc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-01-537-3171?

NSN 5360-01-537-3171 has 2 cross-referenced part numbers: 40-343-1 (Motion Control Industries, Inc.), 40-343-1 (Cmbf, Llc Dba Cmbf Llc).

What NSN replaces 5360-01-537-3171?

There are 3 known substitutes for 5360-01-537-3171: 5305-00-639-4823, 5305-00-821-4675, 5360-00-928-3516. Verify interchangeability with system specifications before substitution.

What are the specifications of 40-343-1?

Key specifications for 40-343-1: Spring Free Length: 3.625 INCHES NOMINAL IN; Spring Solid Outside Diameter: 1.625 INCHES NOMINAL IN; Inside Diameter: 0.815 INCHES NOMINAL IN; Style Designator: CYLINDRICAL. 8 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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