PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221681Spring,helical,compression

Connecticut Spring & Stamping Corporation the Dba Connecticut Spring & Stamping Corp · NSN 5360-00-292-5525 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-292-5525 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-292-5525. Primary manufacturer part number: 221681.
Features
  • Spring,helical,compression — FSC 5360
  • Coil Helix Direction: RIGHT-HAND
  • Surface Treatment: CADMIUM OVERALL
  • Material Document and Classification: AMS 5112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Inside Diameter: 0.672 INCHES NOMINAL IN
  • Style Designator: CYLINDRICAL
  • Spring Free Outside Diameter: 1.0625 INCHES NOMINAL IN
  • Material: STEEL COMP 1090 OVERALL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 1090 Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-292-5525, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Connecticut Spring & Stamping Corporation the Dba Connecticut Spring & Stamping Corp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-292-5525
Primary Part Number221681
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerConnecticut Spring & Stamping Corporation the Dba Connecticut Spring & Stamping Corp
StatusACTIVE
Coil Helix DirectionRIGHT-HAND
Surface TreatmentCADMIUM OVERALL
Material Document and ClassificationAMS 5112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Inside Diameter0.672 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
Spring Free Outside Diameter1.0625 INCHES NOMINAL IN
MaterialSTEEL COMP 1090 OVERALL
Coil Quantity4
Spring Deflection Rate38.000 POUNDS PER INCH NOMINAL LBS
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Spring Free Length0.828 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5965-00-280-3607SC-C-10236 INTERCHANGEABLE
Cushion,ear
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5430-01-195-636622168-1 INTERCHANGEABLE
Screen,protective
Tate Andale, Llc
4820-01-233-6838 INTERCHANGEABLE
Valve,check
4820-01-389-9951 INTERCHANGEABLE
Valve,anchor
Cross-Reference Index
Part NumberManufacturer
221681 Royal Oak Gage, Inc (USA)
221681 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
221681 PRIMARY Connecticut Spring & Stamping Corporation the Dba Connecticut Spring & Stamping Corp (USA)
Related Parts
5965-00-280-3607INTERCHANGEABLE
CUSHION,EAR
SC-C-10236
5430-01-195-6366INTERCHANGEABLE
SCREEN,PROTECTIVE
22168-1
4820-01-233-6838INTERCHANGEABLE
VALVE,CHECK
4820-01-389-9951INTERCHANGEABLE
VALVE,ANCHOR

Frequently Asked Questions

What is NSN 5360-00-292-5525?

NSN 5360-00-292-5525 is a Spring,helical,compression, manufactured by Connecticut Spring & Stamping Corporation the Dba Connecticut Spring & Stamping Corp, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-292-5525?

NSN 5360-00-292-5525 has 3 cross-referenced part numbers: 221681 (Royal Oak Gage, Inc), 221681 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 221681 (Connecticut Spring & Stamping Corporation the Dba Connecticut Spring & Stamping Corp).

What NSN replaces 5360-00-292-5525?

There are 4 known substitutes for 5360-00-292-5525: 5965-00-280-3607, 5430-01-195-6366, 4820-01-233-6838 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 221681?

Key specifications for 221681: Coil Helix Direction: RIGHT-HAND; Surface Treatment: CADMIUM OVERALL; Material Document and Classification: AMS 5112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Inside Diameter: 0.672 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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