The Nut,self-Locking,single Ball Sea, cataloged under National Stock Number 5310-00-550-1283, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-550-1283 |
| Primary Part Number | 910TR |
| Item Name | Nut,self-Locking,single Ball Sea |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Width Across Flats | 1.750 INCHES MAXIMUM IN |
| Thread Series | UN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Features Provided | CASEHARDENED |
| Thread Direction | LEFT-HAND |
| Nominal Thread Size | 1.188 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 1.375 INCHES NOMINAL IN |
| Ball Seat Radius | 1.183 INCHES MINIMUM AND 1.193 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Nut Style | SINGLE BALL SEAT, HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL 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 |
|---|---|
| 910TR PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 48052 | 5/9 Secondary reference Alliedsignal Inc Alliedsignal Braking Systems-Wheel End Products |
| 910TR | 5/9 Secondary reference Oshkosh Corp |
NSN 5310-00-550-1283 is a Nut,self-Locking,single Ball Sea, manufactured by Oshkosh Defense Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-550-1283 has 1 manufacturer part number on file: 910TR (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 2915-00-659-2326. Verify interchangeability with system specifications before substitution.
Key specifications for 910TR: Width Across Flats: 1.750 INCHES MAXIMUM IN; Thread Series: UN; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Features Provided: CASEHARDENED. 14 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.