The Bolt,machine, cataloged under National Stock Number 5306-01-572-5124, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Company. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-572-5124 |
| Primary Part Number | 91280A784 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Mcmaster-Carr Supply Company |
| Status | ACTIVE |
| Head Height | 18.7 MILLIMETERS MINIMUM AND 19.0 MILLIMETERS MAXIMUM MM |
| Fastener Length | 53.1 MILLIMETERS MINIMUM AND 54.5 MILLIMETERS MAXIMUM MM |
| Thread Length | 44.5 MILLIMETERS MINIMUM AND 45.5 MILLIMETERS MAXIMUM MM |
| Nominal Thread Diameter | 14.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Width Between Flats | 24.5 MILLIMETERS NOMINAL MM |
| Color | YELLOW OVERALL |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 10.9 |
| Thread Quantity Per Inch | 2.0 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 91280A784 PRIMARY | Mcmaster-Carr Supply Company (USA) |
| Reference | Meaning |
|---|---|
| 0128801 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 5306-01-572-5124 is a Bolt,machine, manufactured by Mcmaster-Carr Supply Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-572-5124 has 1 manufacturer part number on file: 91280A784 (Mcmaster-Carr Supply Company).
Key specifications for 91280A784: Head Height: 18.7 MILLIMETERS MINIMUM AND 19.0 MILLIMETERS MAXIMUM MM; Fastener Length: 53.1 MILLIMETERS MINIMUM AND 54.5 MILLIMETERS MAXIMUM MM; Thread Length: 44.5 MILLIMETERS MINIMUM AND 45.5 MILLIMETERS MAXIMUM MM; Nominal Thread Diameter: 14.0 MILLIMETERS MM. 12 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.