The Screw,machine, cataloged under National Stock Number 5305-01-330-7864, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Marvin Engineering Co, Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-330-7864 |
| Primary Part Number | 7002602-1 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Marvin Engineering Co, Inc |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | TORQUE SET |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.491 INCHES MINIMUM AND 0.507 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 |
|---|---|
| 7002602-1 | Marvin Engineering Co, Inc (USA) |
| Reference | Meaning |
|---|---|
| 7002602-1 | 3/2 Design control — primary reference U.S. Government activity |
| 10113690 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 7002602-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-330-7864 is a Screw,machine, manufactured by Marvin Engineering Co, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-330-7864 has 1 manufacturer part number on file: 7002602-1 (Marvin Engineering Co, Inc).
Key specifications for 7002602-1: Screw Surface Treatment: CADMIUM; Nominal Thread Diameter: 0.250 INCHES IN; Head Style: FLAT COUNTERSUNK; Thread Direction: RIGHT-HAND. 11 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.