The Setscrew, cataloged under National Stock Number 5305-00-061-1997, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5305-00-061-1997 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 1.625 INCHES NOMINAL IN |
| Thread Length | 0.727 INCHES MAXIMUM IN |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.125 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | OVAL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| 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 |
|---|---|
| R255-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-061-1997 is a Setscrew, classified under FSC 5305, Screws. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5905-00-439-5337, 5905-01-009-4425. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-00-061-1997: Fastener Length: 1.625 INCHES NOMINAL IN; Thread Length: 0.727 INCHES MAXIMUM IN; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.125 INCHES IN. 12 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.