The Nut,self-Locking,single Ball Sea, cataloged under National Stock Number 5310-01-591-1623, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Anixter Inc Dba Anixter. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-591-1623 |
| Primary Part Number | 50CNTEAZ |
| Item Name | Nut,self-Locking,single Ball Sea |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Anixter Inc Dba Anixter |
| Status | ACTIVE |
| Width Across Flats | 18.8 MILLIMETERS MINIMUM AND 19.1 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | SAE J429 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Pitch in Millimeters | 13.00 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Height | 7.7 MILLIMETERS MINIMUM AND 8.2 MILLIMETERS MAXIMUM MM |
| Surface Treatment | PASSIVATE NUT |
| Nut Style | SINGLE BALL SEAT, HEXAGON |
| Thread Class | 2B |
| Material | STEEL CORROSION RESISTING NUT |
| Material | PLASTIC NYLON LOCKING INSERT |
| 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 |
|---|---|
| 50CNTEAZ PRIMARY | Anixter Inc Dba Anixter (USA) |
| Reference | Meaning |
|---|---|
| 50CNNESS | 5/9 Secondary reference Anixter Inc Dba Anixter |
| 04-21610 | 7/2 Vendor item drawing reference Department of Defense Project Manager-Mobile Electric Power |
NSN 5310-01-591-1623 is a Nut,self-Locking,single Ball Sea, manufactured by Anixter Inc Dba Anixter, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-591-1623 has 1 manufacturer part number on file: 50CNTEAZ (Anixter Inc Dba Anixter).
Key specifications for 50CNTEAZ: Width Across Flats: 18.8 MILLIMETERS MINIMUM AND 19.1 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: SAE J429 ASSN STD SINGLE TREATMENT RESPONSE NUT; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Pitch in Millimeters: 13.00. 12 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.