The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-157-6404, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mission Systems Orchard Park Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-157-6404 |
| Primary Part Number | 14874-3 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mission Systems Orchard Park Inc |
| Status | ACTIVE |
| First Step Diameter | 0.2800 INCHES MINIMUM AND 0.2850 INCHES MAXIMUM IN |
| End Diameter | 0.2300 INCHES MINIMUM AND 0.2400 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.3600 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Counterbore Length | 0.0420 INCHES MINIMUM AND 0.0500 INCHES MAXIMUM IN |
| Second Step Diameter | 0.4040 INCHES MINIMUM AND 0.4050 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.2350 INCHES MINIMUM AND 0.2470 INCHES MAXIMUM IN |
| First Step Length | 0.0150 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 14874-3 PRIMARY | Mission Systems Orchard Park Inc (USA) |
| Reference | Meaning |
|---|---|
| 14874-3 | 5/9 Secondary reference Ingersoll-Rand Company Dba Ingersoll-Rand |
NSN 5340-00-157-6404 is a Seat,helical Compression Spring, manufactured by Mission Systems Orchard Park Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-157-6404 has 1 manufacturer part number on file: 14874-3 (Mission Systems Orchard Park Inc).
1 possible match (shared part number, not a government interchangeability claim): 1650-00-338-4695. Verify interchangeability with system specifications before substitution.
Key specifications for 14874-3: Overall Height: 0.5460 INCHES NOMINAL IN; First Step Diameter: 0.2800 INCHES MINIMUM AND 0.2850 INCHES MAXIMUM IN; End Diameter: 0.2300 INCHES MINIMUM AND 0.2400 INCHES MAXIMUM IN; Distance From End to First Step: 0.3600 INCHES MINIMUM AND 0.3750 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.