The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-107-6978, 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 3 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-107-6978 |
| Primary Part Number | 74A450835-2001 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| FSC Application Data | ACFT LANDING GEAR |
| Design Type | SOLID |
| Surface Treatment | ANODIZE |
| 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 |
|---|---|
| 74A450835-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A450835-2001 | Goodrich Corporation (USA) |
| 74A450835-2001 | Circor Aerospace, Inc. Div Circor (USA) |
| 74A450835-2001 | Nassau Tool Works, Inc (USA) |
| 74A450835-2001 | Blair Industries Inc (USA) |
| 74A450835-2001 | Safran Landing Systems Canada Inc. (CAN) |
| 1958-155 | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 74A450835-2001 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 1958-155 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 10117642 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A450835-2001 | C/1 Advisory reference — outside the item-of-supply concept Israel Aircraft Industries Ltd Marketing Directorate |
| 74A450835-2001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 74A450835-2001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A450835-2001 | 5/2 Secondary reference U.S. Government activity |
NSN 5340-01-107-6978 is a Seat,helical Compression Spring, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-107-6978 has 7 manufacturer part numbers on file: 74A450835-2001 (The Boeing Company Div Defense), 74A450835-2001 (Goodrich Corporation), 74A450835-2001 (Circor Aerospace, Inc. Div Circor), 74A450835-2001 (Nassau Tool Works, Inc), 74A450835-2001 (Blair Industries Inc) and 2 more.
Key specifications for 74A450835-2001: FSC Application Data: ACFT LANDING GEAR; Design Type: SOLID; Surface Treatment: ANODIZE; End Item Identification: W/S: AIRCRAFT, HORNET F/A-18. 3 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.