The Screw,shoulder, cataloged under National Stock Number 5305-00-005-5683, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-005-5683 |
| Primary Part Number | A51M10519-11 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.125 INCHES NOMINAL IN |
| Fastener Length | 3.594 INCHES NOMINAL IN |
| Shoulder Length | 2.250 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.622 INCHES MINIMUM AND 0.623 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.406 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.092 INCHES MINIMUM AND 0.097 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.156 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.875 INCHES NOMINAL 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 |
|---|---|
| A51M10519-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51M10519-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51M10519-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
NSN 5305-00-005-5683 is a Screw,shoulder, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-005-5683 has 1 manufacturer part number on file: A51M10519-11 (Northrop Grumman Systems Corporation).
Key specifications for A51M10519-11: Head Height: 0.125 INCHES NOMINAL IN; Fastener Length: 3.594 INCHES NOMINAL IN; Shoulder Length: 2.250 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.622 INCHES MINIMUM AND 0.623 INCHES MAXIMUM FIRST SHOULDER IN. 18 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.