The Collar,shaft, cataloged under National Stock Number 5340-01-671-8637, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Stafford Manufacturing Corp. Dba Stafford Manufacturing Corp. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-671-8637 |
| Primary Part Number | 2S207 |
| Item Name | Collar,shaft |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Stafford Manufacturing Corp. Dba Stafford Manufacturing Corp |
| Status | ACTIVE |
| Screw Thread Quantity Per Inch and Location | 24 1ST HOLE |
| Style Designator | ROUND STEPPED |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Unpackaged Unit Weight | 1.51 POUNDS LBS |
| Nominal Thread Size | 0.375 INCHES THREAD IN |
| Bore Diameter | 2.4375 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 |
| Part Number | Manufacturer |
|---|---|
| 2S207 PRIMARY | Stafford Manufacturing Corp. Dba Stafford Manufacturing Corp (USA) |
NSN 5340-01-671-8637 is a Collar,shaft, manufactured by Stafford Manufacturing Corp. Dba Stafford Manufacturing Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-671-8637 has 1 manufacturer part number on file: 2S207 (Stafford Manufacturing Corp. Dba Stafford Manufacturing Corp).
Key specifications for 2S207: Screw Thread Quantity Per Inch and Location: 24 1ST HOLE; Style Designator: ROUND STEPPED; Overall Width: 0.750 INCHES NOMINAL IN; Outside Diameter: 4.000 INCHES NOMINAL IN. 7 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.