The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-174-5027, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-174-5027 |
| Primary Part Number | 75A430678-2001 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.100 INCHES NOMINAL IN |
| Fastener Length | 2.420 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.490 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN |
| Concentric Hole Depth | 1.750 INCHES NOMINAL IN |
| Thread Length | 0.387 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM FIRST HOLE IN |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Material Document and Classification | AMS 6411 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DEE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Shoulder Diameter | 0.7487 INCHES MINIMUM AND 0.7492 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.404 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN |
| Surface Treatment | CHROMIUM GRIP |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Shoulder Length | 1.920 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.240 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 1.250 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 |
|---|---|
| 75A430678-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 75A430678-2001 | Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk (GBR) |
NSN 5306-01-174-5027 is a Bolt,internally Relieved Body, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-174-5027 has 2 manufacturer part numbers on file: 75A430678-2001 (The Boeing Company Div Defense), 75A430678-2001 (Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk).
Key specifications for 75A430678-2001: Head Height: 0.100 INCHES NOMINAL IN; Fastener Length: 2.420 INCHES NOMINAL IN; Distance From Centerline to Flat: 0.490 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN; Concentric Hole Depth: 1.750 INCHES NOMINAL 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.