The Bolt,shoulder, cataloged under National Stock Number 5306-01-035-5591, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 19 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 | 5306-01-035-5591 |
| Primary Part Number | 768771 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Extended Washer Thickness | 0.070 INCHES MINIMUM IN |
| Head Height | 0.328 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Fastener Length | 0.950 INCHES MINIMUM AND 0.970 INCHES MAXIMUM IN |
| Shoulder Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.305 INCHES MINIMUM AND 0.306 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.470 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS 7459 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.375 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL 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 | X |
| Part Number | Manufacturer |
|---|---|
| 768771 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5306-01-035-5591 is a Bolt,shoulder, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-035-5591 has 1 manufacturer part number on file: 768771 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 768771: Extended Washer Thickness: 0.070 INCHES MINIMUM IN; Head Height: 0.328 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN; Fastener Length: 0.950 INCHES MINIMUM AND 0.970 INCHES MAXIMUM IN; Shoulder Length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN. 19 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.