The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-680-4811, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-680-4811 |
| Primary Part Number | 327B455P12 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Extended Washer Thickness | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Head Height | 0.260 INCHES NOMINAL IN |
| Fastener Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.375 INCHES NOMINAL IN |
| Thread Length | 0.615 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.161 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| 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 | 0.038 INCHES NOMINAL IN |
| Nonstandard Thread Pitch Diameter | +0.1644 TO 0.1667 INCHES IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 327B455P12 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 327B455P12 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-680-4811 is a Bolt,externally Relieved Body, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-680-4811 has 1 manufacturer part number on file: 327B455P12 (General Electric Company).
Key specifications for 327B455P12: Extended Washer Thickness: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Head Height: 0.260 INCHES NOMINAL IN; Fastener Length: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN; Extended Washer Diameter: 0.375 INCHES NOMINAL 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.