The Nut,plain,single Ball Seat,hexag, cataloged under National Stock Number 5310-00-785-9366, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-785-9366 |
| Primary Part Number | MBEU3164 |
| Item Name | Nut,plain,single Ball Seat,hexag |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Width Across Flats | 0.531 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Height | 0.240 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN |
| Ball Seat Radius | 0.625 INCHES NOMINAL IN |
| Nut Style | SINGLE BALL SEAT, HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| MBEU3164 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
NSN 5310-00-785-9366 is a Nut,plain,single Ball Seat,hexag, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-785-9366 has 1 manufacturer part number on file: MBEU3164 (Martin-Baker Aircraft Company Limited).
Key specifications for MBEU3164: Width Across Flats: 0.531 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.250 INCHES IN. 10 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.