The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-124-5985, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Boeing Distribution Services X, Inc.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-124-5985 |
| Primary Part Number | S9404-85 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Boeing Distribution Services X, Inc. |
| Status | ACTIVE |
| First Step Diameter | 0.8600 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM IN |
| End Diameter | 0.6600 INCHES MINIMUM AND 0.6700 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| Distance From End to First Step | 0.0700 INCHES MINIMUM AND 0.1000 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | QQ-A-225/8, ALLOY 6061, T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.0850 INCHES MINIMUM AND 0.0890 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 6061 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| S9404-85 PRIMARY | Boeing Distribution Services X, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10112441 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| S9404-85 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| S9404-85 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-124-5985 is a Seat,helical Compression Spring, manufactured by Boeing Distribution Services X, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-124-5985 has 1 manufacturer part number on file: S9404-85 (Boeing Distribution Services X, Inc.).
Key specifications for S9404-85: Overall Height: 0.1100 INCHES MINIMUM AND 0.1300 INCHES MAXIMUM IN; First Step Diameter: 0.8600 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM IN; End Diameter: 0.6600 INCHES MINIMUM AND 0.6700 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE. 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.