The Screw,tapping, cataloged under National Stock Number 5305-00-421-9168, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-421-9168 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.086 INCHES IN |
| Head Height | 0.045 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN |
| Fastener Length | 0.282 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | 50 FSCM 23610 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Nonmachine Thread Style | DOG TYPE (TYPE B OR C) |
| Head Style | PAN NO. 2 |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | SLOT |
| Material | STEEL OVERALL |
| Head Diameter | 0.155 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 1053489 | 3/9 Design control — primary reference H & E Venture, Llc |
NSN 5305-00-421-9168 is a Screw,tapping, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5306-01-471-4499. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-00-421-9168: Nonmachine Nominal Thread Diameter: 0.086 INCHES IN; Head Height: 0.045 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN; Fastener Length: 0.282 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Surface Treatment Document and Classification: 50 FSCM 23610 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 10 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.