The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-142-5282, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Derbyshire Machine & Tool Co. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Derbyshire Machine & Tool Co (CAGE 71905); D. L. Martin Co. (CAGE 7E947); Guill Tool & Engineering Co Inc Div Guill Defense (CAGE 29030); Delt Industries, Inc. (CAGE 064T2); U.s.a. Spares Inc. (CAGE 1UF60) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-142-5282 |
| Primary Part Number | 4491158-B-15 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4491158-B-15 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| 4491158-B-15 PRIMARY | D. L. Martin Co. (USA) |
| 4491158-B-15 PRIMARY | Guill Tool & Engineering Co Inc Div Guill Defense (USA) |
| 4491158-B-15 PRIMARY | Delt Industries, Inc. (USA) |
| 4491158-B-15 PRIMARY | U.s.a. Spares Inc. (USA) |
| 4491158-B-15 PRIMARY | Skill-Metric Machine and Tool, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SS-522-4491158PC15 | 5/9 Secondary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
| 4491158-B-15 | 5/9 Secondary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
NSN 5305-01-142-5282 is a Screw,cap,hexagon Head, manufactured by Derbyshire Machine & Tool Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-142-5282 has 6 manufacturer part numbers on file: 4491158-B-15 (Derbyshire Machine & Tool Co), 4491158-B-15 (D. L. Martin Co.), 4491158-B-15 (Guill Tool & Engineering Co Inc Div Guill Defense), 4491158-B-15 (Delt Industries, Inc.), 4491158-B-15 (U.s.a. Spares Inc.) and 1 more.
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.