The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-317-9245, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-317-9245 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Countersink Angle in Deg | 60.0 |
| First Step Diameter | 0.5620 INCHES NOMINAL IN |
| End Diameter | 0.2810 INCHES NOMINAL IN |
| Distance From End to First Step | 0.8120 INCHES NOMINAL IN |
| Design Type | SOLID |
| Material Document and Classification | COMP 8640 ASSN STD 1ST MATERIAL RESPONSE OR TY D GR 2 ASSN STD 2ND MATERIAL RESPONSE |
| Second Step Diameter | 1.3150 INCHES NOMINAL IN |
| First Step Length | 2.0000 INCHES NOMINAL IN |
| Material | STEEL COMP 8640 OR STEEL |
| 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 |
|---|---|
| 2149719 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 5340PL0891769 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5340-01-317-9245 is a Seat,helical Compression Spring, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-317-9245: Overall Height: 3.3120 INCHES NOMINAL IN; Countersink Angle in Deg: 60.0; First Step Diameter: 0.5620 INCHES NOMINAL IN; End Diameter: 0.2810 INCHES NOMINAL IN. 9 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.