The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-166-0590, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is International Organization for Standardization (iso). Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-166-0590 |
| Primary Part Number | ISO4032-M12-10-A3L |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Width Across Flats | 19.0 MILLIMETERS NOMINAL MM |
| Thread Tolerance Class | 6H INTERNAL |
| Thread Series | M |
| Thread Pitch in Millimeters | 1.75 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 12.0 MILLIMETERS MM |
| Nut Height | 9.6 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM MM |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Nut Style | HEXAGON |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| 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 |
|---|---|
| ISO4032-M12-10-A3L PRIMARY | International Organization for Standardization (iso) (CHE) |
| 10512145 | General Dynamics Land Systems Canadacorp (CAN) |
| Reference | Meaning |
|---|---|
| 156-118YZ | 5/2 Secondary reference U.S. Government activity |
| 934-10-M12 | 3/9 Design control — primary reference Metric and Multistandard Components Corp |
| DIN934-M12-10-A3L | 5/9 Secondary reference Din Deutsches Institut Fur Normung Ev |
NSN 5310-01-166-0590 is a Nut,plain,hexagon, manufactured by International Organization for Standardization (iso), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-166-0590 has 2 manufacturer part numbers on file: ISO4032-M12-10-A3L (International Organization for Standardization (iso)), 10512145 (General Dynamics Land Systems Canadacorp).
Key specifications for ISO4032-M12-10-A3L: Width Across Flats: 19.0 MILLIMETERS NOMINAL MM; Thread Tolerance Class: 6H INTERNAL; Thread Series: M; Thread Pitch in Millimeters: 1.75. 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.