The Bolt,shoulder, cataloged under National Stock Number 5306-01-383-8863, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-383-8863 |
| Primary Part Number | 5051M52P04 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Extended Washer Thickness | 0.182 INCHES NOMINAL IN |
| Head Height | 0.166 INCHES MINIMUM IN |
| Fastener Length | 3.840 INCHES MINIMUM AND 3.860 INCHES MAXIMUM IN |
| Shoulder Length | 0.054 INCHES MINIMUM AND 0.071 INCHES MAXIMUM ALL SHOULDERS IN |
| Extended Washer Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Thread Length | 0.319 INCHES MAXIMUM IN |
| Shoulder Shape | SQUARE ALL SHOULDERS |
| Criticality Code Justification | FEAT |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.375 INCHES NOMINAL IN |
| Shoulder Width Across Flats | 0.370 INCHES MINIMUM AND 0.371 INCHES MAXIMUM ALL SHOULDERS IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 5051M52P04 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 5051M52P04 | 5/9 Secondary reference Kitco Llc |
| 5051M52P04 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| 5051M52P04 | 5/9 Secondary reference Acufast Aircraft Products |
| 5051M52P04 | 5/9 Secondary reference General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp |
NSN 5306-01-383-8863 is a Bolt,shoulder, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-383-8863 has 1 manufacturer part number on file: 5051M52P04 (General Electric Company).
Key specifications for 5051M52P04: Extended Washer Thickness: 0.182 INCHES NOMINAL IN; Head Height: 0.166 INCHES MINIMUM IN; Fastener Length: 3.840 INCHES MINIMUM AND 3.860 INCHES MAXIMUM IN; Shoulder Length: 0.054 INCHES MINIMUM AND 0.071 INCHES MAXIMUM ALL SHOULDERS IN. 17 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.