The Nut,plain,single Ball Seat,hexag, cataloged under National Stock Number 5310-00-764-0202, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-764-0202 |
| Primary Part Number | 1199Y1351 |
| Item Name | Nut,plain,single Ball Seat,hexag |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.750 INCHES NOMINAL IN |
| Thread Series | UN |
| Thread Direction | LEFT-HAND |
| Nominal Thread Size | 1.312 INCHES IN |
| Nut Height | 1.375 INCHES NOMINAL IN |
| Ball Seat Radius | 1.193 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Nut Style | SINGLE BALL SEAT, HEXAGON |
| Thread Class | 3B |
| 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 |
|---|---|
| 1199Y1351 | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 1199Y1351 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-00-764-0202 is a Nut,plain,single Ball Seat,hexag, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-764-0202 has 1 manufacturer part number on file: 1199Y1351 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for 1199Y1351: Width Across Flats: 1.750 INCHES NOMINAL IN; Thread Series: UN; Thread Direction: LEFT-HAND; Nominal Thread Size: 1.312 INCHES IN. 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.