PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16446Spring,helical,torsion

Prestolite Electric Inc · NSN 5360-00-249-8306 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-249-8306 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-249-8306. Primary manufacturer part number: 16446.
Features
  • Spring,helical,torsion — FSC 5360
  • Surface Treatment: CADMIUM OVERALL
  • End Style: OFFSET EYE SECOND END
  • Coil Helix Direction: RIGHT-HAND
  • End Length From Second Bend to Third Bend or End: 0.250 INCHES NOMINAL OVERALL IN
  • End Length From Coil Axis to First Bend: 0.313 INCHES NOMINAL SECOND END IN
  • End Angular Relationship: ENDS ANGLED ONE TO OTHER
  • Coil Quantity: 4
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 5360-00-249-8306, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Prestolite Electric Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-249-8306
Primary Part Number16446
Item NameSpring,helical,torsion
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerPrestolite Electric Inc
StatusACTIVE
Surface TreatmentCADMIUM OVERALL
End StyleOFFSET EYE SECOND END
Coil Helix DirectionRIGHT-HAND
End Length From Second Bend to Third Bend or End0.250 INCHES NOMINAL OVERALL IN
End Length From Coil Axis to First Bend0.313 INCHES NOMINAL SECOND END IN
End Angular RelationshipENDS ANGLED ONE TO OTHER
Coil Quantity4
Style DesignatorSINGLE TORSION LEFT HAND
Spring Free Outside Diameter0.403 INCHES NOMINAL IN
MaterialSTEEL OVERALL
End StyleSTRAIGHT ANGULAR, LEFT END FIRST END
Spring Free Length0.225 INCHES NOMINAL IN
End Length From Coil Axis to First Bend0.156 INCHES NOMINAL FIRST END IN
End Length From First Bend to Second Bend or End0.500 INCHES NOMINAL SECOND END IN
End Length From First Bend to Second Bend or End0.219 INCHES NOMINAL FIRST END IN
Inside Diameter0.313 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5970-00-324-964716446 INTERCHANGEABLE
Insulation Sleeving,electrical
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5950-00-645-864516446 INTERCHANGEABLE
Transformer,power
Bosch Security Systems, Llc
4730-00-794-6424 INTERCHANGEABLE
Plug,pipe
5305-00-829-3870 INTERCHANGEABLE
Screw,machine
5120-00-935-7366 INTERCHANGEABLE
Wrench,open End Box
3040-01-556-117916446 INTERCHANGEABLE
Connecting Link,rigid
L3harris Technologies, Inc Div Space & Airborne Systems
6515-01-591-584405.002.303S INTERCHANGEABLE
Blade,bone Saw,power
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
16446 Prestolite Electric Inc (USA)
S045016446 Prestolite Electric Inc (USA)
16446 PRIMARY Prestolite Electric Inc (USA)
S045016446 Prestolite Electric Inc (USA)
Related Parts
5970-00-324-9647INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
16446
5950-00-645-8645INTERCHANGEABLE
TRANSFORMER,POWER
16446
4730-00-794-6424INTERCHANGEABLE
PLUG,PIPE
5305-00-829-3870INTERCHANGEABLE
SCREW,MACHINE
5120-00-935-7366INTERCHANGEABLE
WRENCH,OPEN END BOX
3040-01-556-1179INTERCHANGEABLE
CONNECTING LINK,RIGID
16446
6515-01-591-5844INTERCHANGEABLE
BLADE,BONE SAW,POWER
05.002.303S

Frequently Asked Questions

What is NSN 5360-00-249-8306?

NSN 5360-00-249-8306 is a Spring,helical,torsion, manufactured by Prestolite Electric Inc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-249-8306?

NSN 5360-00-249-8306 has 4 cross-referenced part numbers: 16446 (Prestolite Electric Inc), S045016446 (Prestolite Electric Inc), 16446 (Prestolite Electric Inc), S045016446 (Prestolite Electric Inc).

What NSN replaces 5360-00-249-8306?

There are 7 known substitutes for 5360-00-249-8306: 5970-00-324-9647, 5950-00-645-8645, 4730-00-794-6424 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16446?

Key specifications for 16446: Surface Treatment: CADMIUM OVERALL; End Style: OFFSET EYE SECOND END; Coil Helix Direction: RIGHT-HAND; End Length From Second Bend to Third Bend or End: 0.250 INCHES NOMINAL OVERALL IN. 16 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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