The Setscrew, cataloged under National Stock Number 5305-00-654-6258, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-654-6258 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 27579 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| 27579 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 5305-00-654-6258 is a Setscrew, classified under FSC 5305, Screws. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5950-01-230-7096, 6910-01-600-9273, 5305-01-610-9886. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-00-654-6258: Nominal Thread Diameter: 0.250 INCHES IN; Thread Direction: RIGHT-HAND; Point Style: CUP; Thread Quantity Per Inch: 20. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.