The Screw,tapping, cataloged under National Stock Number 5305-01-160-4501, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5305-01-160-4501 |
| Primary Part Number | 145111 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.190 INCHES IN |
| Head Height | 0.123 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Nonmachine Thread Style | DOG TYPE (TYPE B OR C) |
| Features Provided | CASEHARDENED |
| Head Style | ROUND |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Internal Drive Style | SLOT |
| Material | STEEL OVERALL |
| Head Diameter | 0.334 INCHES MINIMUM AND 0.359 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 |
| Part Number | Manufacturer |
|---|---|
| 145111 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5305-01-160-4501 is a Screw,tapping, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-160-4501 has 1 manufacturer part number on file: 145111 (Caterpillar Inc Div Caterpillar Defense).
1 possible match (shared part number, not a government interchangeability claim): 5950-01-612-5729. Verify interchangeability with system specifications before substitution.
Key specifications for 145111: Nonmachine Nominal Thread Diameter: 0.190 INCHES IN; Head Height: 0.123 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN; Fastener Length: 0.250 INCHES NOMINAL IN; Nonmachine Thread Style: DOG TYPE (TYPE B OR C). 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.