PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55941Spring,helical,extension

Kleinschmidt Inc · NSN 5360-00-663-3346 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-663-3346 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-663-3346. Primary manufacturer part number: 55941.
Features
  • Spring,helical,extension — FSC 5360
  • Inside Diameter: 0.105 INCHES NOMINAL IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • Spring Free Length: 0.281 INCHES NOMINAL IN
  • Spring Free Outside Diameter: 0.125 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Hook Radius: 0.053 INCHES NOMINAL BOTH ENDS IN
  • Coil Quantity: 5-3/4
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 5360-00-663-3346, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kleinschmidt Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5360-00-663-3346
Primary Part Number55941
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerKleinschmidt Inc
StatusACTIVE
Inside Diameter0.105 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Spring Free Length0.281 INCHES NOMINAL IN
Spring Free Outside Diameter0.125 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Hook Radius0.053 INCHES NOMINAL BOTH ENDS IN
Coil Quantity5-3/4
Design TypeOPEN
End StyleSHORT LOOP BOTH ENDS
Style DesignatorCYLINDRICAL
Surface TreatmentTIN OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3695-00-254-692055941 INTERCHANGEABLE
Insert,handle
Mcculloch Corp
2940-00-360-7962146541 INTERCHANGEABLE
Cover,fluid Filter
Honeywell International Inc Dba Honeywell Div Consumer Products Group
4820-01-320-83965594-2 INTERCHANGEABLE
Valve,rotary,selector
Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division
5315-01-421-94785594-1 INTERCHANGEABLE
Pin,cotter
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5340-01-533-837655941 INTERCHANGEABLE
Bracket,mounting
Aerovironment, Inc. Dba Aerovironment Inc
Cross-Reference Index
Part NumberManufacturer
55941 Kleinschmidt Inc (USA)
Related Parts
3695-00-254-6920INTERCHANGEABLE
INSERT,HANDLE
55941
2940-00-360-7962INTERCHANGEABLE
COVER,FLUID FILTER
146541
4820-01-320-8396INTERCHANGEABLE
VALVE,ROTARY,SELECTOR
5594-2
5315-01-421-9478INTERCHANGEABLE
PIN,COTTER
5594-1
5340-01-533-8376INTERCHANGEABLE
BRACKET,MOUNTING
55941

Frequently Asked Questions

What is NSN 5360-00-663-3346?

NSN 5360-00-663-3346 is a Spring,helical,extension, manufactured by Kleinschmidt Inc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-663-3346?

NSN 5360-00-663-3346 has 1 cross-referenced part number: 55941 (Kleinschmidt Inc).

What NSN replaces 5360-00-663-3346?

There are 5 known substitutes for 5360-00-663-3346: 3695-00-254-6920, 2940-00-360-7962, 4820-01-320-8396 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55941?

Key specifications for 55941: Inside Diameter: 0.105 INCHES NOMINAL IN; Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; Spring Free Length: 0.281 INCHES NOMINAL IN; Spring Free Outside Diameter: 0.125 INCHES NOMINAL IN. 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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