The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-415-6718, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-415-6718 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| First Step Diameter | 0.2860 INCHES MINIMUM AND 0.2910 INCHES MAXIMUM IN |
| End Diameter | 0.1840 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.0550 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Second Step Length | 0.0750 INCHES MINIMUM AND 0.0800 INCHES MAXIMUM IN |
| Style Designator | SEAT |
| Second Step Diameter | 0.3470 INCHES MINIMUM AND 0.3520 INCHES MAXIMUM IN |
| First Step Length | 0.0200 INCHES MINIMUM AND 0.0250 INCHES MAXIMUM IN |
| Surface Treatment | ZINC |
| Bore Diameter | 0.1200 INCHES MINIMUM AND 0.1300 INCHES MAXIMUM IN |
| Material | COPPER 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 |
| Reference | Meaning |
|---|---|
| 116740AG | 3/2 Design control — primary reference U.S. Government activity |
| 116740AGCP | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 5340-01-415-6718 is a Seat,helical Compression Spring, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-415-6718: Overall Height: 0.1580 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM IN; First Step Diameter: 0.2860 INCHES MINIMUM AND 0.2910 INCHES MAXIMUM IN; End Diameter: 0.1840 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN; Distance From End to First Step: 0.0550 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN. 11 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.