The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-331-1589, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-331-1589 |
| Primary Part Number | M32258-UAC05L1 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZX |
| Departure From Cited Designator | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| M32258-UAC05L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 0.312-18UNJC-3BNICUL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| ESNA 09NU-058 | 5/9 Secondary reference Harvard Industries Inc |
| ESNA 09NU-058 | C/1 Advisory reference — outside the item-of-supply concept Esna, Llc |
| 0.312-18UNJC-3BNICU | 5/1 Secondary reference Naval Sea Systems Command |
| M32258-UAC05 | 4/1 Identification reference U.S. Government activity |
| ESNA 09NU-058L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 5310-01-331-1589 is a Nut,self-Locking,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-331-1589 has 2 manufacturer part numbers on file: M32258-UAC05L1 (Naval Inventory Control Point Mechanicsburg), 0.312-18UNJC-3BNICUL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for M32258-UAC05L1: Criticality Code Justification: ZZZX; Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 2 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.