PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

73681Spring,helical,compression

Optical Technology Devices Inc · NSN 5360-00-291-1193 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-291-1193 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-291-1193. Primary manufacturer part number: 73681.
Features
  • Spring,helical,compression — FSC 5360
  • Inside Diameter: 1.125 INCHES NOMINAL IN
  • Coil Quantity: 7
  • Spring Free Outside Diameter: 1.813 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Spring Free Length: 3.500 INCHES NOMINAL IN
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
  • Coil Helix Direction: RIGHT-HAND
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-291-1193, 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 8 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-291-1193
Primary Part Number73681
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerOptical Technology Devices Inc
StatusACTIVE
Inside Diameter1.125 INCHES NOMINAL IN
Coil Quantity7
Spring Free Outside Diameter1.813 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Spring Free Length3.500 INCHES NOMINAL IN
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Coil Helix DirectionRIGHT-HAND
Style DesignatorCYLINDRICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6145-00-729-9270 INTERCHANGEABLE
Cable,special Purpose,electrical
4820-00-840-142173-68-1 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Flowserve Corporation Div Flowserve Us Inc
5331-01-167-044740A73681 INTERCHANGEABLE
O-Ring
Stewart & Stevenson Power Products Llc
3120-01-208-6826 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
73681 Optical Technology Devices Inc (USA)
B2488-27 Kieley and Mueller Inc Sub of Johnson Controls Inc (USA)
Related Parts
6145-00-729-9270INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
4820-00-840-1421INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
73-68-1
5331-01-167-0447INTERCHANGEABLE
O-RING
40A73681
3120-01-208-6826INTERCHANGEABLE
BEARING,SLEEVE

Frequently Asked Questions

What is NSN 5360-00-291-1193?

NSN 5360-00-291-1193 is a Spring,helical,compression, manufactured by Optical Technology Devices Inc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-291-1193?

NSN 5360-00-291-1193 has 2 cross-referenced part numbers: 73681 (Optical Technology Devices Inc), B2488-27 (Kieley and Mueller Inc Sub of Johnson Controls Inc).

What NSN replaces 5360-00-291-1193?

There are 4 known substitutes for 5360-00-291-1193: 6145-00-729-9270, 4820-00-840-1421, 5331-01-167-0447 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 73681?

Key specifications for 73681: Inside Diameter: 1.125 INCHES NOMINAL IN; Coil Quantity: 7; Spring Free Outside Diameter: 1.813 INCHES NOMINAL IN; Material: STEEL OVERALL. 8 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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