The Collar, cataloged under National Stock Number 5340-01-179-1931, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-179-1931 |
| Item Name | Collar |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; 1.000 INCHES OUTSIDE DIAMETER; 0.500 INCHES INSIDE DIAMETER; 0.437 INCHES HIGH; 0.250 INCHES THREADED HOLE IN SIDE; FURNISHED WITH A SET SCREW IN |
| 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 |
|---|---|
| 3-0209-2 | 3/2 Design control — primary reference U.S. Government activity |
| 3-0209-2 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-179-1931 is a Collar, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-179-1931: General Characteristics Item Description: STEEL; 1.000 INCHES OUTSIDE DIAMETER; 0.500 INCHES INSIDE DIAMETER; 0.437 INCHES HIGH; 0.250 INCHES THREADED HOLE IN SIDE; FURNISHED WITH A SET SCREW IN. 1 specification is 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.