The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-064-1557, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rosemount Inc Dba Fisher Rosemount Service and Support. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-064-1557 |
| Primary Part Number | 01281-0317-0001 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rosemount Inc Dba Fisher Rosemount Service and Support |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 1.355 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.340 INCHES NOMINAL IN |
| First Diameter From Head | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 1.015 INCHES MINIMUM AND 1.045 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 01281-0317-0001 PRIMARY | Rosemount Inc Dba Fisher Rosemount Service and Support (USA) |
| Reference | Meaning |
|---|---|
| 5306PL1497648 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 01281-0317-0001 | 5/9 Secondary reference Rosemount Aerospace Inc Dba Rosemount Aerospace Inc |
NSN 5306-01-064-1557 is a Bolt,externally Relieved Body, manufactured by Rosemount Inc Dba Fisher Rosemount Service and Support, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-064-1557 has 1 manufacturer part number on file: 01281-0317-0001 (Rosemount Inc Dba Fisher Rosemount Service and Support).
Key specifications for 01281-0317-0001: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 1.355 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.340 INCHES NOMINAL IN. 15 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.