The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-004-5528, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-004-5528 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| Fastener Length | 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN |
| Thread Length | 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| First Diameter From Head | 0.134 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.300 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.090 INCHES NOMINAL IN |
| Width Between Flats | 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.200 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| F307995 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems (operations) Limited |
| F307995 | 3/9 Design control — primary reference British Aerospace (military Aircraft & Aerostructures) |
NSN 5306-01-004-5528 is a Bolt,externally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-004-5528: Head Height: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN; Fastener Length: 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN; Thread Length: 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN; First Diameter From Head: 0.134 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN. 16 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.