The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-338-6847, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-338-6847 |
| Primary Part Number | 2231231 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| First Step Diameter | 1.3760 INCHES NOMINAL IN |
| End Diameter | 1.8150 INCHES NOMINAL IN |
| Distance From End to First Step | 0.4250 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Features Provided | CASEHARDENED |
| Second Step Diameter | 1.8150 INCHES NOMINAL IN |
| Bore Taper in Deg | 7.5 |
| First Step Length | 0.1150 INCHES NOMINAL IN |
| Bore Diameter | 0.8850 INCHES NOMINAL IN |
| Material | 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 |
| Part Number | Manufacturer |
|---|---|
| 2231231 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| 2231231 | 3/9 Design control — primary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
NSN 5340-00-338-6847 is a Seat,helical Compression Spring, manufactured by Fairbanks Morse, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-338-6847 has 1 manufacturer part number on file: 2231231 (Fairbanks Morse, Llc).
Key specifications for 2231231: Overall Height: 0.7470 INCHES NOMINAL IN; First Step Diameter: 1.3760 INCHES NOMINAL IN; End Diameter: 1.8150 INCHES NOMINAL IN; Distance From End to First Step: 0.4250 INCHES NOMINAL 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.