The Bolt,machine, cataloged under National Stock Number 5306-01-074-0154, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-074-0154 |
| Primary Part Number | 3MS81 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Fastener Length | 3.880 INCHES NOMINAL IN |
| Thread Length | 1.880 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Features Provided | HEX NUT |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 14 |
| 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 |
|---|---|
| 3MS81 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 3MS81 | 5/9 Secondary reference Oshkosh Corp |
NSN 5306-01-074-0154 is a Bolt,machine, manufactured by Oshkosh Defense Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-074-0154 has 1 manufacturer part number on file: 3MS81 (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-416-8053. Verify interchangeability with system specifications before substitution.
Key specifications for 3MS81: Fastener Length: 3.880 INCHES NOMINAL IN; Thread Length: 1.880 INCHES NOMINAL IN; Nominal Thread Diameter: 0.438 INCHES IN; Features Provided: HEX NUT. 9 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.