The Screw,machine, cataloged under National Stock Number 5305-01-068-3445, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-068-3445 |
| Primary Part Number | 1800997-25 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Thread Length | 0.294 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.181 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 1800997-25 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1800997-25 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5305-01-068-3445 is a Screw,machine, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-068-3445 has 2 manufacturer part numbers on file: 1800997-25 (Northrop Grumman Systems Corporation), 1800997-25 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 1800997-25: Head Height: 0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Thread Length: 0.294 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. 13 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.