The Nut,plain,octagon, cataloged under National Stock Number 5310-00-765-2815, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Meritor Industrial Products, Llc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-765-2815 |
| Primary Part Number | 1227F448 |
| Item Name | Nut,plain,octagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Meritor Industrial Products, Llc |
| Status | ACTIVE |
| Width Across Flats | 4.875 INCHES NOMINAL IN |
| Thread Series | UN |
| Material Document and Classification | 1227-K-531 FSCM 19207 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 3.375 INCHES IN |
| Nut Height | 0.438 INCHES NOMINAL IN |
| Nut Style | PLAIN, OCTAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 1227F448 | Meritor Industrial Products, Llc (USA) |
| 1227F448 | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| CPR100831 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 138798R1 | 3/2 Design control — primary reference U.S. Government activity |
| 138798R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
NSN 5310-00-765-2815 is a Nut,plain,octagon, manufactured by Meritor Industrial Products, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-765-2815 has 2 manufacturer part numbers on file: 1227F448 (Meritor Industrial Products, Llc), 1227F448 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for 1227F448: Width Across Flats: 4.875 INCHES NOMINAL IN; Thread Series: UN; Material Document and Classification: 1227-K-531 FSCM 19207 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 11 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.