The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-073-9170, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-073-9170 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.218 INCHES NOMINAL IN |
| Fastener Length | 0.735 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-N-290,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Internal Thread Length | 0.625 INCHES NOMINAL CONCENTRIC HOLE IN |
| Thread Series | UNF CONCENTRIC HOLE |
| Thread Length | 0.735 INCHES NOMINAL IN |
| Threads Per Inch | 24 CONCENTRIC HOLE |
| Style Designator | CONCENTRIC HOLE THREADED |
| Material Document and Classification | QQ-B-626,COMP 22,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES CONCENTRIC HOLE IN |
| Width Between Flats | 0.875 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | COPPER ALLOY 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 |
| Reference | Meaning |
|---|---|
| 920B644-1 | 3/2 Design control — primary reference U.S. Government activity |
| 920B644-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-073-9170 is a Bolt,internally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-073-9170: Head Height: 0.218 INCHES NOMINAL IN; Fastener Length: 0.735 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-N-290,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Internal Thread Length: 0.625 INCHES NOMINAL CONCENTRIC HOLE IN. 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.