The Nut,plain,round, cataloged under National Stock Number 5310-00-089-0205, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-089-0205 |
| Primary Part Number | 6776955 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Thread Series | UN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 3.750 INCHES IN |
| Nut Diameter | 4.880 INCHES NOMINAL IN |
| Drive Point Depth | 0.180 INCHES NOMINAL IN |
| Undercut Thickness | 0.160 INCHES NOMINAL IN |
| Nut Thickness | 0.660 INCHES NOMINAL IN |
| Small End Diameter | 3.940 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Countersink Angle | 45.0 DEGREES NOMINAL NUT |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 1141 OVERALL |
| 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 |
|---|---|
| 6776955 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 6776955 | 5/9 Secondary reference U.S. Government activity |
| 6776955 | 5/1 Secondary reference Terex Equipment Ltd Div Construction Equipment |
NSN 5310-00-089-0205 is a Nut,plain,round, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-089-0205 has 1 manufacturer part number on file: 6776955 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6776955: Thread Series: UN; Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.375 INCHES NOMINAL IN. 18 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.