The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-254-1470, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 14 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 | 5340-01-254-1470 |
| Primary Part Number | 68A412739-2001 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| First Step Diameter | 2.6050 INCHES MINIMUM AND 2.6150 INCHES MAXIMUM IN |
| End Diameter | 1.6850 INCHES MINIMUM AND 1.6950 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | PS15548,MCDONNEL AIRCRAFT CO MFR REF SINGLE TREATMENT RESPONSE |
| Second End Diameter | 1.9650 INCHES MINIMUM AND 1.9750 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.1900 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | QQ-A-200/11, T73511 OR T7351 OR T73 FED SPEC SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.4000 INCHES NOMINAL IN |
| Counterbore Diameter | 1.7500 INCHES NOMINAL IN |
| First Step Length | 0.1200 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Bore Diameter | 1.5000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 7075 |
| 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 |
|---|---|
| 68A412739-2001 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5340-01-254-1470 is a Seat,helical Compression Spring, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-254-1470 has 1 manufacturer part number on file: 68A412739-2001 (The Boeing Company Div Defense).
Key specifications for 68A412739-2001: Overall Height: 0.9000 INCHES NOMINAL IN; First Step Diameter: 2.6050 INCHES MINIMUM AND 2.6150 INCHES MAXIMUM IN; End Diameter: 1.6850 INCHES MINIMUM AND 1.6950 INCHES MAXIMUM IN; Surface Treatment Document and Classification: PS15548,MCDONNEL AIRCRAFT CO MFR REF SINGLE TREATMENT RESPONSE. 14 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.