The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-142-4759, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Boeing Distribution, Inc.. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-142-4759 |
| Primary Part Number | 327B460P4 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Boeing Distribution, Inc. |
| Status | ACTIVE |
| Extended Washer Thickness | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Head Height | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Fastener Length | 0.830 INCHES MINIMUM AND 0.850 INCHES MAXIMUM IN |
| Thread Length | 0.272 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.142 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.448 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 0.538 INCHES NOMINAL IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.202 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.052 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Surface Treatment | NICKEL OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Third Diameter From Head | 0.161 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 327B460P4 | Boeing Distribution, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 327B460P4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-142-4759 is a Bolt,externally Relieved Body, manufactured by Boeing Distribution, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-142-4759 has 1 manufacturer part number on file: 327B460P4 (Boeing Distribution, Inc.).
Key specifications for 327B460P4: Extended Washer Thickness: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Head Height: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Fastener Length: 0.830 INCHES MINIMUM AND 0.850 INCHES MAXIMUM IN; Thread Length: 0.272 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN. 21 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.