The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-137-5733, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is M.s. Aerospace Inc. Dba Ms Aerospace Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-137-5733 |
| Primary Part Number | 5051T79P01 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| Status | ACTIVE |
| Distance From Centerline to Flat | 0.151 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN |
| Thread Length | 0.454 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DEE |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 5051T79P01 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 5051T79P01 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 5051T79P01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-137-5733 is a Bolt,internally Relieved Body, manufactured by M.s. Aerospace Inc. Dba Ms Aerospace Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-137-5733 has 2 manufacturer part numbers on file: 5051T79P01 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 5051T79P01 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 5051T79P01: Distance From Centerline to Flat: 0.151 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN; Thread Length: 0.454 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN; Head Style: DEE. 9 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.