PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

276612Seat,helical Compression Spring

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 5340-00-410-3532 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-410-3532 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-410-3532. Primary manufacturer part number: 276612.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Counterbore Length: 0.5500 INCHES NOMINAL IN
  • Distance From End to First Step: 0.2300 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM IN
  • Spherical Seat Top Radius: 0.1200 INCHES NOMINAL IN
  • End Diameter: 1.9800 INCHES MINIMUM AND 2.0200 INCHES MAXIMUM IN
  • Design Type: SOLID
  • Surface Treatment: ANODIZE
  • Material: ALUMINUM ALLOY
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Aluminum Alloy construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-410-3532, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 11 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-410-3532
Primary Part Number276612
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Counterbore Length0.5500 INCHES NOMINAL IN
Distance From End to First Step0.2300 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM IN
Spherical Seat Top Radius0.1200 INCHES NOMINAL IN
End Diameter1.9800 INCHES MINIMUM AND 2.0200 INCHES MAXIMUM IN
Design TypeSOLID
Surface TreatmentANODIZE
MaterialALUMINUM ALLOY
Style DesignatorSEAT
Counterbore Diameter2.6800 INCHES NOMINAL IN
Bore Diameter1.6850 INCHES MINIMUM AND 1.6900 INCHES MAXIMUM IN
First Step Diameter2.8750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 2
3040-00-077-2359276612 INTERCHANGEABLE
Shaft,coupling
Eaton Aerospace, Llc Dba Jackson South
4720-00-639-9899 INTERCHANGEABLE
Hose,nonmetallic
Cross-Reference Index
Part NumberManufacturer
276612 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
276612 Kidde-Fenwal, Llc (USA)
Related Parts
3040-00-077-2359INTERCHANGEABLE
SHAFT,COUPLING
276612
4720-00-639-9899INTERCHANGEABLE
HOSE,NONMETALLIC

Frequently Asked Questions

What is NSN 5340-00-410-3532?

NSN 5340-00-410-3532 is a Seat,helical Compression Spring, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-410-3532?

NSN 5340-00-410-3532 has 2 cross-referenced part numbers: 276612 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 276612 (Kidde-Fenwal, Llc).

What NSN replaces 5340-00-410-3532?

There are 2 known substitutes for 5340-00-410-3532: 3040-00-077-2359, 4720-00-639-9899. Verify interchangeability with system specifications before substitution.

What are the specifications of 276612?

Key specifications for 276612: Special Features: NOT CASEHARDENED; Counterbore Length: 0.5500 INCHES NOMINAL IN; Distance From End to First Step: 0.2300 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM IN; Spherical Seat Top Radius: 0.1200 INCHES NOMINAL IN. 13 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