The Bolt,machine, cataloged under National Stock Number 5306-01-188-1128, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-188-1128 |
| Primary Part Number | P12610554 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Head Height | 23.0 MILLIMETERS NOMINAL MM |
| Fastener Length | 90.00 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 2.0 |
| Thread Length | 44.0 MILLIMETERS NOMINAL MM |
| Hardness Rating | 260.0 BRINELL HULTGREN MINIMUM AND 300.0 BRINELL HULTGREN MAXIMUM OVERALL |
| Nominal Thread Diameter | 36.0 MILLIMETERS MM |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 55.0 MILLIMETERS NOMINAL MM |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| P12610554 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| P12610554 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-01-188-1128 is a Bolt,machine, manufactured by Fairbanks Morse, Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-188-1128 has 1 manufacturer part number on file: P12610554 (Fairbanks Morse, Llc).
Key specifications for P12610554: Head Height: 23.0 MILLIMETERS NOMINAL MM; Fastener Length: 90.00 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 2.0; Thread Length: 44.0 MILLIMETERS NOMINAL 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.