The Bolt,shoulder, cataloged under National Stock Number 5306-00-788-6786, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-788-6786 |
| Primary Part Number | 32-21151-1 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.320 INCHES NOMINAL IN |
| Head Height | 0.700 INCHES NOMINAL IN |
| Fastener Length | 4.000 INCHES NOMINAL IN |
| Shoulder Length | 3.145 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 1 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-C-320 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 1.800 INCHES NOMINAL IN |
| Shoulder Diameter | 1.2483 INCHES MINIMUM AND 1.2490 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.691 INCHES MINIMUM AND 0.706 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.141 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR CHROMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP E4340 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 3.820 INCHES NOMINAL 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 |
|---|---|
| 32-21151-1 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5306-00-788-6786 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-788-6786 has 1 manufacturer part number on file: 32-21151-1 (The Boeing Company Div Defense).
Key specifications for 32-21151-1: Extended Washer Thickness: 0.320 INCHES NOMINAL IN; Head Height: 0.700 INCHES NOMINAL IN; Fastener Length: 4.000 INCHES NOMINAL IN; Shoulder Length: 3.145 INCHES NOMINAL 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.