The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-383-6898, 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 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-383-6898 |
| Primary Part Number | 52316B |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Countersink Angle in Deg | 10.0 |
| First Step Diameter | 1.8120 INCHES NOMINAL IN |
| End Diameter | 1.7190 INCHES NOMINAL IN |
| Seat Angle in Deg | 25.0 |
| Countersink Diameter | 1.9380 INCHES NOMINAL IN |
| Second End Diameter | 1.8750 INCHES NOMINAL IN |
| Distance From End to First Step | 0.6880 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Counterbore Length | 0.1880 INCHES NOMINAL IN |
| Second Step Diameter | 3.5000 INCHES NOMINAL IN |
| Bore Taper in Deg | 10.0 |
| First Step Length | 0.2500 INCHES NOMINAL IN |
| Bore Diameter | 1.3750 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 |
|---|---|
| 52316B | Hatch & Kirk, Inc. (USA) |
| 52316B PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| 22N600PC46 | 5/9 Secondary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
| 52316B | 3/9 Design control — primary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
| 22N605PC46 | 5/9 Secondary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
NSN 5340-00-383-6898 is a Seat,helical Compression Spring, manufactured by Fairbanks Morse, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-383-6898 has 2 manufacturer part numbers on file: 52316B (Hatch & Kirk, Inc.), 52316B (Fairbanks Morse, Llc).
Key specifications for 52316B: Overall Height: 1.3750 INCHES NOMINAL IN; Countersink Angle in Deg: 10.0; First Step Diameter: 1.8120 INCHES NOMINAL IN; End Diameter: 1.7190 INCHES NOMINAL IN. 15 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.