PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A73Spring,helical,compression

Ashcroft Inc Dba Heise · NSN 5360-00-290-9120 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-290-9120 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-290-9120. Primary manufacturer part number: A73.
Features
  • Spring,helical,compression — FSC 5360
  • Inside Diameter: 1.250 INCHES NOMINAL IN
  • Spring Free Length: 3.500 INCHES NOMINAL IN
  • Coil Quantity: 7-1/2
  • Material: STEEL OVERALL
  • Style Designator: CYLINDRICAL
  • Coil Helix Direction: RIGHT-HAND
  • Spring Deflection Rate: 905.000 POUNDS PER INCH NOMINAL LBS
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 5360-00-290-9120, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 10 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-290-9120
Primary Part NumberA73
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Inside Diameter1.250 INCHES NOMINAL IN
Spring Free Length3.500 INCHES NOMINAL IN
Coil Quantity7-1/2
MaterialSTEEL OVERALL
Style DesignatorCYLINDRICAL
Coil Helix DirectionRIGHT-HAND
Spring Deflection Rate905.000 POUNDS PER INCH NOMINAL LBS
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Spring Free Outside Diameter1.938 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4320-00-035-7573A73 INTERCHANGEABLE
Impeller
Circor Naval Solutions Llc Dba Warren Pumps
5365-00-163-9726A73 INTERCHANGEABLE
Plug,machine Thread,magnetic
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
5945-00-324-0899 INTERCHANGEABLE
Relay,thermal
3510-00-956-7496417-652223 INTERCHANGEABLE
Coil,drain Valve
Wascomat of America Div of Bermil Industries Corp
3030-01-061-7798 INTERCHANGEABLE
Belt,v
5962-01-128-7592A73 INTERCHANGEABLE
Microcircuit,digital
Caes Systems Llc Div Missile Systems Division
Cross-Reference Index
Part NumberManufacturer
A73 PRIMARY Ashcroft Inc Dba Heise (USA)
Related Parts
4320-00-035-7573INTERCHANGEABLE
IMPELLER
A73
5365-00-163-9726INTERCHANGEABLE
PLUG,MACHINE THREAD,MAGNETIC
A73
5945-00-324-0899INTERCHANGEABLE
RELAY,THERMAL
3510-00-956-7496INTERCHANGEABLE
COIL,DRAIN VALVE
417-652223
3030-01-061-7798INTERCHANGEABLE
BELT,V
5962-01-128-7592INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
A73

Frequently Asked Questions

What is NSN 5360-00-290-9120?

NSN 5360-00-290-9120 is a Spring,helical,compression, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-290-9120?

NSN 5360-00-290-9120 has 1 cross-referenced part number: A73 (Ashcroft Inc Dba Heise).

What NSN replaces 5360-00-290-9120?

There are 6 known substitutes for 5360-00-290-9120: 4320-00-035-7573, 5365-00-163-9726, 5945-00-324-0899 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A73?

Key specifications for A73: Inside Diameter: 1.250 INCHES NOMINAL IN; Spring Free Length: 3.500 INCHES NOMINAL IN; Coil Quantity: 7-1/2; Material: STEEL OVERALL. 10 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