The Nut,heavy,hexagon, cataloged under National Stock Number 5310-01-383-3259, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-383-3259 |
| Primary Part Number | MIL-DTL-1222 ASTM-A194 GRADE 7L1 |
| Item Name | Nut,heavy,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZW |
| Departure From Cited Document | 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 |
|---|---|
| MIL-DTL-1222 ASTM-A194 GRADE 7L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1 3/8-8UNC-2B TYIIIL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 1 3/8-8UNC-2B TYIII | 4/1 Identification reference U.S. Government activity |
| MIL-DTL-1222 ASTM-A194 GRADE 7 | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-383-3259 is a Nut,heavy,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-383-3259 has 2 manufacturer part numbers on file: MIL-DTL-1222 ASTM-A194 GRADE 7L1 (Naval Inventory Control Point Mechanicsburg), 1 3/8-8UNC-2B TYIIIL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for MIL-DTL-1222 ASTM-A194 GRADE 7L1: Criticality Code Justification: ZZZW; Departure From Cited Document: 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.