The Collar,shaft, cataloged under National Stock Number 5340-01-668-1914, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-668-1914 |
| Item Name | Collar,shaft |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED-COUNTERBORED 1ST HOLE AND THREADED-COUNTERBORED 2ND HOLE |
| Screw Thread Quantity Per Inch and Location | 40 ALL HOLES |
| Style Designator | PLAIN ROUND |
| Screw Thread Series Designator and Location | ALL HOLES UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Nominal Thread Size | 0.1120 INCHES ALL HOLES IN |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| SP-4-SS | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-668-1914 is a Collar,shaft, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-668-1914: Securing Hole Type and Location: THREADED-COUNTERBORED 1ST HOLE AND THREADED-COUNTERBORED 2ND HOLE; Screw Thread Quantity Per Inch and Location: 40 ALL HOLES; Style Designator: PLAIN ROUND; Screw Thread Series Designator and Location: ALL HOLES UNIFIED NATIONAL COARSE (UNC). 8 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.