The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-414-9122, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sterling Engine Co Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-414-9122 |
| Primary Part Number | P211586 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sterling Engine Co Inc |
| Status | ACTIVE |
| First Step Diameter | 1.5000 INCHES NOMINAL IN |
| End Diameter | 0.9690 INCHES NOMINAL IN |
| Distance From End to First Step | 0.1090 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | SAE 1315 ASSN STD SINGLE MATERIAL RESPONSE |
| Second Step Diameter | 1.8750 INCHES NOMINAL IN |
| Bore Taper in Deg | 14.0 |
| First Step Length | 0.1250 INCHES NOMINAL IN |
| Chamfer Angle in Deg | 45.0 |
| Spherical Seat Top Radius | 0.3100 INCHES NOMINAL IN |
| Bore Diameter | 0.6870 INCHES NOMINAL IN |
| Material | STEEL COMP 1315 |
| 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 |
|---|---|
| P211586 PRIMARY | Sterling Engine Co Inc (USA) |
| Reference | Meaning |
|---|---|
| NP11155PC5016 | 5/9 Secondary reference Cooper Cameron Corp Ajax-Superior Div |
| P211586 | 5/9 Secondary reference Cooper Cameron Corp Ajax-Superior Div |
| NP11158PC6 | 5/9 Secondary reference Cooper Cameron Corp Ajax-Superior Div |
NSN 5340-00-414-9122 is a Seat,helical Compression Spring, manufactured by Sterling Engine Co Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-414-9122 has 1 manufacturer part number on file: P211586 (Sterling Engine Co Inc).
Key specifications for P211586: Overall Height: 0.4840 INCHES NOMINAL IN; First Step Diameter: 1.5000 INCHES NOMINAL IN; End Diameter: 0.9690 INCHES NOMINAL IN; Distance From End to First Step: 0.1090 INCHES NOMINAL IN. 13 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.