The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-117-7709, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 12 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 | 5340-01-117-7709 |
| Primary Part Number | 145H7316-1 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| First Step Diameter | 0.7100 INCHES MINIMUM AND 0.7200 INCHES MAXIMUM IN |
| End Diameter | 0.6800 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.2050 INCHES MINIMUM AND 0.2250 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | MIL-S-6758, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.1400 INCHES MINIMUM AND 0.1500 INCHES MAXIMUM IN |
| Second Step Diameter | 0.8650 INCHES MINIMUM AND 0.8850 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.5980 INCHES MINIMUM AND 0.6080 INCHES MAXIMUM IN |
| First Step Length | 0.0750 INCHES MINIMUM AND 0.9500 INCHES MAXIMUM IN |
| Bore Diameter | 0.4680 INCHES MINIMUM AND 0.4720 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 |
| 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 |
|---|---|
| 145H7316-1 PRIMARY | The Boeing Company (USA) |
NSN 5340-01-117-7709 is a Seat,helical Compression Spring, manufactured by The Boeing Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-117-7709 has 1 manufacturer part number on file: 145H7316-1 (The Boeing Company).
Key specifications for 145H7316-1: Overall Height: 0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN; First Step Diameter: 0.7100 INCHES MINIMUM AND 0.7200 INCHES MAXIMUM IN; End Diameter: 0.6800 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM IN; Distance From End to First Step: 0.2050 INCHES MINIMUM AND 0.2250 INCHES MAXIMUM IN. 12 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.