PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PM21912Spring,helical,torsion

Mason Electric Co. Dba Mason Controls · NSN 5360-00-451-0060 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-451-0060 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-451-0060. Primary manufacturer part number: PM21912.
Features
  • Spring,helical,torsion — FSC 5360
  • End Style: ONE HOOK END FIRST END
  • Style Designator: SINGLE TORSION LEFT HAND
  • Material Document and Classification: SISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Spring Free Outside Diameter: 0.196 INCHES NOMINAL IN
  • End Angular Relationship: ENDS ANGLED ONE TO OTHER
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • End Length From First Bend to Second Bend or End: 0.093 INCHES NOMINAL OVERALL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 302 Overall construction
General Description

The Spring,helical,torsion, cataloged under National Stock Number 5360-00-451-0060, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mason Electric Co. Dba Mason Controls. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5360-00-451-0060
Primary Part NumberPM21912
Item NameSpring,helical,torsion
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerMason Electric Co. Dba Mason Controls
StatusACTIVE
End StyleONE HOOK END FIRST END
Style DesignatorSINGLE TORSION LEFT HAND
Material Document and ClassificationSISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Spring Free Outside Diameter0.196 INCHES NOMINAL IN
End Angular RelationshipENDS ANGLED ONE TO OTHER
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
End Length From First Bend to Second Bend or End0.093 INCHES NOMINAL OVERALL IN
End Length From Third Bend or End0.090 INCHES NOMINAL OVERALL IN
End Length From Coil Axis to First Bend0.593 INCHES NOMINAL OVERALL IN
Coil Quantity5
End Length From Second Bend to Third Bend or End0.093 INCHES NOMINAL OVERALL IN
MaterialSTEEL COMP 302 OVERALL
Inside Diameter0.156 INCHES NOMINAL IN
End StylePARALLEL, RIGHT END SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-01-343-5446MS21912K12 INTERCHANGEABLE
Tee,tube
Sae International Dba Sae International
5365-01-348-397221912 INTERCHANGEABLE
Spacer,ring
Dana Commercial Vehicle Products, Llc
6240-01-475-8243 INTERCHANGEABLE
Lamp,fluorescent
4820-01-482-11102191-2 ASSY 10IN-2HMM10-4F INTERCHANGEABLE
Valve,check
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
21912 Microwave Devices Inc (USA)
PM21912 PRIMARY Mason Electric Co. Dba Mason Controls (USA)
21912 Amphenol Corp Div Amphenol Aerospace Operations (USA)
PM21912 Unison Industries Llc (USA)
21912 Unison Industries Llc (USA)
Related Parts
4730-01-343-5446INTERCHANGEABLE
TEE,TUBE
MS21912K12
5365-01-348-3972INTERCHANGEABLE
SPACER,RING
21912
6240-01-475-8243INTERCHANGEABLE
LAMP,FLUORESCENT
4820-01-482-1110INTERCHANGEABLE
VALVE,CHECK
2191-2 ASSY 10IN-2HMM10-4F

Frequently Asked Questions

What is NSN 5360-00-451-0060?

NSN 5360-00-451-0060 is a Spring,helical,torsion, manufactured by Mason Electric Co. Dba Mason Controls, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-451-0060?

NSN 5360-00-451-0060 has 5 cross-referenced part numbers: 21912 (Microwave Devices Inc), PM21912 (Mason Electric Co. Dba Mason Controls), 21912 (Amphenol Corp Div Amphenol Aerospace Operations), PM21912 (Unison Industries Llc), 21912 (Unison Industries Llc).

What NSN replaces 5360-00-451-0060?

There are 4 known substitutes for 5360-00-451-0060: 4730-01-343-5446, 5365-01-348-3972, 6240-01-475-8243 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PM21912?

Key specifications for PM21912: End Style: ONE HOOK END FIRST END; Style Designator: SINGLE TORSION LEFT HAND; Material Document and Classification: SISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Spring Free Outside Diameter: 0.196 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com