PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1A9729Spring,helical,compression

Napco International Llc Dba Napco International Inc · NSN 5360-00-516-3265 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-516-3265 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-516-3265. Primary manufacturer part number: 1A9729.
Features
  • Spring,helical,compression — FSC 5360
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
  • Inside Diameter: 0.822 INCHES NOMINAL IN
  • Material Document and Classification: ASTM A230-47 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Spring Free Length: 2.813 INCHES NOMINAL IN
  • Spring Solid Outside Diameter: 1.062 INCHES MAXIMUM IN
  • Style Designator: CYLINDRICAL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 1064 Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-516-3265, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, 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
NSN5360-00-516-3265
Primary Part Number1A9729
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusACTIVE
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Inside Diameter0.822 INCHES NOMINAL IN
Material Document and ClassificationASTM A230-47 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Spring Free Length2.813 INCHES NOMINAL IN
Spring Solid Outside Diameter1.062 INCHES MAXIMUM IN
Style DesignatorCYLINDRICAL
MaterialSTEEL COMP 1064 OVERALL
Spring Solid Length0.623 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-139-2999 INTERCHANGEABLE
Washer,flat
6150-00-557-7660367-0810-030 INTERCHANGEABLE
Bus,conductor
Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems
5905-01-084-5714 INTERCHANGEABLE
Resistor,fixed,film
2840-01-399-27731A9729 INTERCHANGEABLE
Shield,heat,aircraft Gas Turbine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4730-01-438-091783627-02G INTERCHANGEABLE
Strainer Element,sediment
Griswold Industries Dba Cla-Val Co
4820-01-438-268496311-02C INTERCHANGEABLE
Valve,diaphragm,stop
Griswold Industries Dba Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
96311 White Motor Corp (USA)
4008A Hercules Engine Co Inc (USA)
1A9729 PRIMARY Napco International Llc Dba Napco International Inc (USA)
643424 Sasco Inc Canadian Div
4008A PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
5163265 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
2BL052 PRIMARY Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
Related Parts
5310-00-139-2999INTERCHANGEABLE
WASHER,FLAT
6150-00-557-7660INTERCHANGEABLE
BUS,CONDUCTOR
367-0810-030
5905-01-084-5714INTERCHANGEABLE
RESISTOR,FIXED,FILM
2840-01-399-2773INTERCHANGEABLE
SHIELD,HEAT,AIRCRAFT GAS TURBINE
1A9729
4730-01-438-0917INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
83627-02G
4820-01-438-2684INTERCHANGEABLE
VALVE,DIAPHRAGM,STOP
96311-02C

Frequently Asked Questions

What is NSN 5360-00-516-3265?

NSN 5360-00-516-3265 is a Spring,helical,compression, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-516-3265?

NSN 5360-00-516-3265 has 7 cross-referenced part numbers: 96311 (White Motor Corp), 4008A (Hercules Engine Co Inc), 1A9729 (Napco International Llc Dba Napco International Inc), 643424 (Sasco Inc Canadian Div), 4008A (Brinkley Technology Group Llc Dba Hercules Manufacturing) and 2 more.

What NSN replaces 5360-00-516-3265?

There are 6 known substitutes for 5360-00-516-3265: 5310-00-139-2999, 6150-00-557-7660, 5905-01-084-5714 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1A9729?

Key specifications for 1A9729: Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Inside Diameter: 0.822 INCHES NOMINAL IN; Material Document and Classification: ASTM A230-47 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 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