The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-092-7494, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-092-7494 |
| Primary Part Number | 70410-02506-101 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Countersink Angle in Deg | 90.0 |
| First Step Diameter | 0.9150 INCHES MINIMUM AND 0.9200 INCHES MAXIMUM IN |
| Material Hardness Rating | 56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM |
| End Diameter | 0.5600 INCHES MINIMUM AND 0.5650 INCHES MAXIMUM IN |
| Countersink Diameter | 0.5300 INCHES NOMINAL IN |
| Distance From End to First Step | 0.1564 INCHES MINIMUM AND 0.1566 INCHES MAXIMUM IN |
| Style Designator | SEAT |
| Surface Treatment | PASSIVATE |
| Bore Diameter | 0.4400 INCHES MINIMUM AND 0.4420 INCHES MAXIMUM IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 70410-02506-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5340-01-092-7494 is a Seat,helical Compression Spring, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-092-7494 has 1 manufacturer part number on file: 70410-02506-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70410-02506-101: Overall Height: 0.2050 INCHES MINIMUM AND 0.2060 INCHES MAXIMUM IN; Countersink Angle in Deg: 90.0; First Step Diameter: 0.9150 INCHES MINIMUM AND 0.9200 INCHES MAXIMUM IN; Material Hardness Rating: 56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM. 10 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.