The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-442-5325, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fastener Technology Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-442-5325 |
| Primary Part Number | FT1394-12-5 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fastener Technology Corp |
| Status | ACTIVE |
| Head Height | 0.171 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN |
| Fastener Length | 1.855 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.620 INCHES NOMINAL IN |
| Material Document and Classification | MIL-H-6875 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.198 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.515 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| FT1394-12-5 | Fastener Technology Corp (USA) |
| Reference | Meaning |
|---|---|
| 586R814H01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-442-5325 is a Bolt,externally Relieved Body, manufactured by Fastener Technology Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-442-5325 has 1 manufacturer part number on file: FT1394-12-5 (Fastener Technology Corp).
Key specifications for FT1394-12-5: Head Height: 0.171 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN; Fastener Length: 1.855 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.620 INCHES NOMINAL IN. 17 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.