The Bolt,shoulder, cataloged under National Stock Number 5306-00-003-3884, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-003-3884 |
| Primary Part Number | A51P60805-11 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Extended Washer Thickness | 0.200 INCHES NOMINAL IN |
| Head Height | 0.400 INCHES NOMINAL IN |
| Fastener Length | 5.452 INCHES MINIMUM AND 5.457 INCHES MAXIMUM IN |
| Shoulder Length | 4.921 INCHES MINIMUM AND 4.926 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | MIL-C-26074,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 1.150 INCHES NOMINAL IN |
| Shoulder Diameter | 0.745 INCHES MINIMUM AND 0.746 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.375 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.108 INCHES MINIMUM AND 0.113 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | MIL-S-8949 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP D6AC OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 4.570 INCHES MINIMUM AND 4.575 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| A51P60805-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51P60805-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51P60805-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
NSN 5306-00-003-3884 is a Bolt,shoulder, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-003-3884 has 1 manufacturer part number on file: A51P60805-11 (Northrop Grumman Systems Corporation).
Key specifications for A51P60805-11: Extended Washer Thickness: 0.200 INCHES NOMINAL IN; Head Height: 0.400 INCHES NOMINAL IN; Fastener Length: 5.452 INCHES MINIMUM AND 5.457 INCHES MAXIMUM IN; Shoulder Length: 4.921 INCHES MINIMUM AND 4.926 INCHES MAXIMUM FIRST SHOULDER IN. 22 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.