PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21636Spring,helical,extension

Optical Technology Devices Inc · NSN 5360-00-597-2188 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-597-2188 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-597-2188. Primary manufacturer part number: 21636.
Features
  • Spring,helical,extension — FSC 5360
  • Coil Helix Direction: RIGHT-HAND
  • Coil Quantity: 18
  • Hook Radius: 0.080 INCHES NOMINAL BOTH ENDS IN
  • Design Type: CLOSED
  • Material Document and Classification: QQ-W-423,FORM 1,COND B FED SPEC ALL MATERIAL RESPONSES OVERALL
  • Material: STEEL OVERALL
  • Spring Free Length: 0.932 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,extension, cataloged under National Stock Number 5360-00-597-2188, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Optical Technology Devices Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-597-2188
Primary Part Number21636
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerOptical Technology Devices Inc
StatusACTIVE
Coil Helix DirectionRIGHT-HAND
Coil Quantity18
Hook Radius0.080 INCHES NOMINAL BOTH ENDS IN
Design TypeCLOSED
Material Document and ClassificationQQ-W-423,FORM 1,COND B FED SPEC ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL OVERALL
Spring Free Length0.932 INCHES NOMINAL IN
Spring Free Outside Diameter0.222 INCHES NOMINAL IN
Opening Width0.040 INCHES NOMINAL BOTH ENDS IN
Style DesignatorCYLINDRICAL
Inside Diameter0.160 INCHES NOMINAL IN
End StyleRAISED HOOK BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6340-00-024-214021636 INTERCHANGEABLE
Fault Assy,positive
Hamilton Sundstrand Corporation Dba Collins Aerospace
3110-00-151-91323-32GRADE3 INTERCHANGEABLE
Ball,bearing
Skf Usa Inc.
5365-00-572-736021636 INTERCHANGEABLE
Ring,e,pansion
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5342-00-865-3746L64-BA-20 INTERCHANGEABLE
Mount,resilient,weapon System
Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
5340-00-910-8105216-36 INTERCHANGEABLE
Grip,handle
Fl Industries Inc Pneumotive Div
4210-01-133-9053438735 INTERCHANGEABLE
Extinguisher,fire
Tyco Fire Products Lp
5915-01-330-538610073-7315 INTERCHANGEABLE
Filter,band Pass
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
2930-01-411-623521636 INTERCHANGEABLE
Impeller,pump,centrifugal
Industrial Technologies and Services Llc
5905-01-479-610221636 INTERCHANGEABLE
Resistor,thermal
Rdf Corporation
4720-01-728-745921636 INTERCHANGEABLE
Hose Assembly Set,nonmetallic
Ritchie Engineering Co Inc
Cross-Reference Index
Part NumberManufacturer
21636 Optical Technology Devices Inc (USA)
Related Parts
6340-00-024-2140INTERCHANGEABLE
FAULT ASSY,POSITIVE
21636
3110-00-151-9132INTERCHANGEABLE
BALL,BEARING
3-32GRADE3
5365-00-572-7360INTERCHANGEABLE
RING,E,PANSION
21636
5342-00-865-3746INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
L64-BA-20
5340-00-910-8105INTERCHANGEABLE
GRIP,HANDLE
216-36
4210-01-133-9053INTERCHANGEABLE
EXTINGUISHER,FIRE
438735
5915-01-330-5386INTERCHANGEABLE
FILTER,BAND PASS
10073-7315
2930-01-411-6235INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
21636
5905-01-479-6102INTERCHANGEABLE
RESISTOR,THERMAL
21636
4720-01-728-7459INTERCHANGEABLE
HOSE ASSEMBLY SET,NONMETALLIC
21636

Frequently Asked Questions

What is NSN 5360-00-597-2188?

NSN 5360-00-597-2188 is a Spring,helical,extension, manufactured by Optical Technology Devices Inc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-597-2188?

NSN 5360-00-597-2188 has 1 cross-referenced part number: 21636 (Optical Technology Devices Inc).

What NSN replaces 5360-00-597-2188?

There are 10 known substitutes for 5360-00-597-2188: 6340-00-024-2140, 3110-00-151-9132, 5365-00-572-7360 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21636?

Key specifications for 21636: Coil Helix Direction: RIGHT-HAND; Coil Quantity: 18; Hook Radius: 0.080 INCHES NOMINAL BOTH ENDS IN; Design Type: CLOSED. 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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