PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6443Spring,helical,extension

Independent Rough Terrain Center Llc · NSN 5360-01-616-7970 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-01-616-7970 — this item is cataloged by the U.S. Government under National Stock Number 5360-01-616-7970. Primary manufacturer part number: 6443.
Features
  • Spring,helical,extension — FSC 5360
  • Inside Diameter: 0.080 INCHES NOMINAL IN
  • Spring Length Under Load: 6.380 INCHES NOMINAL IN
  • Style Designator: CYLINDRICAL
  • Spring Free Length: 4.000 INCHES NOMINAL IN
  • Load Rating: 6.290 POUNDS MINIMUM AND 26.400 POUNDS MAXIMUM LBS
  • Material: STEEL OVERALL
  • Spring Free Outside Diameter: 0.640 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,extension, cataloged under National Stock Number 5360-01-616-7970, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Independent Rough Terrain Center Llc. Government technical data includes 9 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-01-616-7970
Primary Part Number6443
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerIndependent Rough Terrain Center Llc
StatusACTIVE
Inside Diameter0.080 INCHES NOMINAL IN
Spring Length Under Load6.380 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
Spring Free Length4.000 INCHES NOMINAL IN
Load Rating6.290 POUNDS MINIMUM AND 26.400 POUNDS MAXIMUM LBS
MaterialSTEEL OVERALL
Spring Free Outside Diameter0.640 INCHES NOMINAL IN
Nondefinitive Spec/std Data302 TYPE
End StyleFULL LOOP OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3120-00-895-78016443SR INTERCHANGEABLE
Bushing,sleeve
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
3120-01-249-170010026920 INTERCHANGEABLE
Bearing Half,sleeve
Deutz Corporation
2920-01-267-86676459 INTERCHANGEABLE
Lead Set,ignition,engine
Standard Motor Products
6515-01-384-5708GS3506 INTERCHANGEABLE
Guide Wire,cardiovascular Cathet
Terumo Medical Corp
4010-01-601-7194 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Cross-Reference Index
Part NumberManufacturer
94135K32 Mcmaster-Carr Supply Co (USA)
6443 PRIMARY Independent Rough Terrain Center Llc (USA)
Related Parts
3120-00-895-7801INTERCHANGEABLE
BUSHING,SLEEVE
6443SR
3120-01-249-1700INTERCHANGEABLE
BEARING HALF,SLEEVE
10026920
2920-01-267-8667INTERCHANGEABLE
LEAD SET,IGNITION,ENGINE
6459
6515-01-384-5708INTERCHANGEABLE
GUIDE WIRE,CARDIOVASCULAR CATHET
GS3506
4010-01-601-7194INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG

Frequently Asked Questions

What is NSN 5360-01-616-7970?

NSN 5360-01-616-7970 is a Spring,helical,extension, manufactured by Independent Rough Terrain Center Llc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-01-616-7970?

NSN 5360-01-616-7970 has 2 cross-referenced part numbers: 94135K32 (Mcmaster-Carr Supply Co), 6443 (Independent Rough Terrain Center Llc).

What NSN replaces 5360-01-616-7970?

There are 5 known substitutes for 5360-01-616-7970: 3120-00-895-7801, 3120-01-249-1700, 2920-01-267-8667 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6443?

Key specifications for 6443: Inside Diameter: 0.080 INCHES NOMINAL IN; Spring Length Under Load: 6.380 INCHES NOMINAL IN; Style Designator: CYLINDRICAL; End Item Identification: 3930015999978. 11 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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