The Screw,machine, cataloged under National Stock Number 5305-01-054-8378, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Corp Electronic Systems Defensive System Div. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-054-8378 |
| Primary Part Number | ST5H106-56 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Corp Electronic Systems Defensive System Div |
| Status | ACTIVE |
| Head Height | 0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.547 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN |
| Thread Length | 0.345 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | WATERTIGHT |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 303 |
| Internal Drive Style | CROSS RECESS TYPE II |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.266 INCHES MINIMUM AND 0.296 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 |
|---|---|
| ST5H106-56 PRIMARY | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
NSN 5305-01-054-8378 is a Screw,machine, manufactured by Northrop Grumman Corp Electronic Systems Defensive System Div, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-054-8378 has 1 manufacturer part number on file: ST5H106-56 (Northrop Grumman Corp Electronic Systems Defensive System Div).
Key specifications for ST5H106-56: Head Height: 0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.547 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN; Thread Length: 0.345 INCHES MINIMUM 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.