The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-215-5319, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-215-5319 |
| Primary Part Number | 7057M70P05 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Head Height | 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN |
| Fastener Length | 4.490 INCHES MINIMUM AND 4.510 INCHES MAXIMUM IN |
| Thread Length | 0.600 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN |
| Hole Configuration Style | HEXAGON FLATS |
| Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 3.830 INCHES MINIMUM AND 3.910 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.060 INCHES MINIMUM AND 0.070 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 | X |
| Part Number | Manufacturer |
|---|---|
| 7057M70P05 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 7057M70P05 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 7057M70P05 | 5/9 Secondary reference Blanc Aircraft Fasteners Inc |
NSN 5306-01-215-5319 is a Bolt,externally Relieved Body, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-215-5319 has 2 manufacturer part numbers on file: 7057M70P05 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 7057M70P05 (General Electric Company).
Key specifications for 7057M70P05: Head Height: 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN; Fastener Length: 4.490 INCHES MINIMUM AND 4.510 INCHES MAXIMUM IN; Thread Length: 0.600 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN; Hole Configuration Style: HEXAGON FLATS. 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.