PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

525-16Spring,helical,compression

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 5360-00-233-1456 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-233-1456 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-233-1456. Primary manufacturer part number: 525-16.
Features
  • Spring,helical,compression — FSC 5360
  • Material: STEEL CORROSION RESISTING OVERALL
  • Spring Free Outside Diameter: 0.500 INCHES NOMINAL IN
  • Style Designator: CYLINDRICAL
  • Spring Free Length: 2.578 INCHES NOMINAL IN
  • Coil Helix Direction: LEFT-HAND
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
  • Spring Solid Length: 2.031 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-233-1456, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5360-00-233-1456
Primary Part Number525-16
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusCANCELLED
MaterialSTEEL CORROSION RESISTING OVERALL
Spring Free Outside Diameter0.500 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
Spring Free Length2.578 INCHES NOMINAL IN
Coil Helix DirectionLEFT-HAND
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Spring Solid Length2.031 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3455-00-224-366059-10016 INTERCHANGEABLE
Cutter,milling,metal Slitting
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5310-00-313-762452516 INTERCHANGEABLE
Nut,plain,hexagon
L3harris Technologies, Inc Div Space & Airborne Systems
5999-01-138-599352516 INTERCHANGEABLE
Parts Kit,electronic Equipment
Setra Systems, Inc. Dba Gems Sensors
5985-01-375-49205537824-2 INTERCHANGEABLE
Waveguide Assembly
Naval Sea Systems Command
5330-01-619-360652516 INTERCHANGEABLE
Gasket
Westerbeke Corporation
Cross-Reference Index
Part NumberManufacturer
525-16 Donallco Inc (USA)
525-16 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
Related Parts
3455-00-224-3660INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
59-10016
5310-00-313-7624INTERCHANGEABLE
NUT,PLAIN,HEXAGON
52516
5999-01-138-5993INTERCHANGEABLE
PARTS KIT,ELECTRONIC EQUIPMENT
52516
5985-01-375-4920INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
5537824-2
5330-01-619-3606INTERCHANGEABLE
GASKET
52516

Frequently Asked Questions

What is NSN 5360-00-233-1456?

NSN 5360-00-233-1456 is a Spring,helical,compression, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5360 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5360-00-233-1456?

NSN 5360-00-233-1456 has 2 cross-referenced part numbers: 525-16 (Donallco Inc), 525-16 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).

What NSN replaces 5360-00-233-1456?

There are 5 known substitutes for 5360-00-233-1456: 3455-00-224-3660, 5310-00-313-7624, 5999-01-138-5993 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 525-16?

Key specifications for 525-16: Material: STEEL CORROSION RESISTING OVERALL; Spring Free Outside Diameter: 0.500 INCHES NOMINAL IN; Style Designator: CYLINDRICAL; Spring Free Length: 2.578 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5360-00-233-1456 still in active supply?

NSN 5360-00-233-1456 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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