The Bolt,machine, cataloged under National Stock Number 5306-00-281-5190, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Kurz & Root Generator Company, Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-281-5190 |
| Primary Part Number | 73-997-52 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Kurz & Root Generator Company, Llc |
| Status | ACTIVE |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 6.000 INCHES NOMINAL IN |
| Thread Length | 1.250 INCHES MINIMUM IN |
| Material Document and Classification | QQ-S-633 FS1035 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | UNFINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.500 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 1035 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 |
| Part Number | Manufacturer |
|---|---|
| 73-997-52 PRIMARY | Kurz & Root Generator Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| JH3-001-45 | 5/9 Secondary reference Hollingsworth John R Co |
| MJH3-001-45 | 5/9 Secondary reference Mancraft Industries Inc |
NSN 5306-00-281-5190 is a Bolt,machine, manufactured by Kurz & Root Generator Company, Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-281-5190 has 1 manufacturer part number on file: 73-997-52 (Kurz & Root Generator Company, Llc).
Key specifications for 73-997-52: Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 6.000 INCHES NOMINAL IN; Thread Length: 1.250 INCHES MINIMUM IN; Material Document and Classification: QQ-S-633 FS1035 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 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.