PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31198Spring,helical,torsion

Pneudraulics, Inc. · NSN 5360-00-538-7120 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-538-7120 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-538-7120. Primary manufacturer part number: 31198.
Features
  • Spring,helical,torsion — FSC 5360
  • End Style: ONE HOOK END OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • End Length: 0.750 INCHES NOMINAL BOTH ENDS IN
  • Material: STEEL OVERALL
  • Spring Free Outside Diameter: 0.216 INCHES NOMINAL IN
  • Material Document and Classification: MIL-W-46078,CLASS 17-7PH MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: SINGLE TORSION LEFT HAND
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,torsion, cataloged under National Stock Number 5360-00-538-7120, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pneudraulics, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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.

Technical Specifications
ParameterValue
NSN5360-00-538-7120
Primary Part Number31198
Item NameSpring,helical,torsion
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerPneudraulics, Inc.
StatusACTIVE
End StyleONE HOOK END OVERALL
Surface TreatmentPASSIVATE OVERALL
End Length0.750 INCHES NOMINAL BOTH ENDS IN
MaterialSTEEL OVERALL
Spring Free Outside Diameter0.216 INCHES NOMINAL IN
Material Document and ClassificationMIL-W-46078,CLASS 17-7PH MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSINGLE TORSION LEFT HAND
Inside Diameter0.180 INCHES NOMINAL IN
End Angular RelationshipENDS ANGLED ONE TO OTHER
Spring Free Length0.109 INCHES MINIMUM IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Coil Helix DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5136-00-197-9305 INTERCHANGEABLE
Die,thread Cutting
2990-00-254-6030NT300 INTERCHANGEABLE
Pipe,exhaust
Ap Parts Co Northern Tube Div
3120-01-330-215131198 INTERCHANGEABLE
Bearing,sleeve
Wilshire Corp
5950-01-407-0140 INTERCHANGEABLE
Coil,electrical
Cross-Reference Index
Part NumberManufacturer
T018-180 Associated Spring Barnes Group Inc (USA)
T018-180-140R Associated Spring Barnes Group Inc (USA)
31198 PRIMARY Pneudraulics, Inc. (USA)
Related Parts
5136-00-197-9305INTERCHANGEABLE
DIE,THREAD CUTTING
2990-00-254-6030INTERCHANGEABLE
PIPE,EXHAUST
NT300
3120-01-330-2151INTERCHANGEABLE
BEARING,SLEEVE
31198
5950-01-407-0140INTERCHANGEABLE
COIL,ELECTRICAL

Frequently Asked Questions

What is NSN 5360-00-538-7120?

NSN 5360-00-538-7120 is a Spring,helical,torsion, manufactured by Pneudraulics, Inc., classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-538-7120?

NSN 5360-00-538-7120 has 3 cross-referenced part numbers: T018-180 (Associated Spring Barnes Group Inc), T018-180-140R (Associated Spring Barnes Group Inc), 31198 (Pneudraulics, Inc.).

What NSN replaces 5360-00-538-7120?

There are 4 known substitutes for 5360-00-538-7120: 5136-00-197-9305, 2990-00-254-6030, 3120-01-330-2151 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31198?

Key specifications for 31198: End Style: ONE HOOK END OVERALL; Surface Treatment: PASSIVATE OVERALL; End Length: 0.750 INCHES NOMINAL BOTH ENDS IN; Material: STEEL OVERALL. 12 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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