The Nut,plain,round, cataloged under National Stock Number 5310-01-339-7780, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-339-7780 |
| Primary Part Number | 845-6602371 PIECE 10L1 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Thread Series | UN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | MIL-C-24252 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.250 INCHES NOMINAL IN |
| Nominal Thread Size | 2.000 INCHES IN |
| Nut Diameter | 2.000 INCHES NOMINAL IN |
| Nut Thickness | 1.688 INCHES NOMINAL IN |
| Drive Point Quantity | 2 |
| Nut Style | ROUND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | COBALT ALLOY OVERALL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 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 |
|---|---|
| 845-6602371 PIECE 10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 845-6602371 PIECE 10 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 5310-01-339-7780 is a Nut,plain,round, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-339-7780 has 1 manufacturer part number on file: 845-6602371 PIECE 10L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 845-6602371 PIECE 10L1: Thread Series: UN; Criticality Code Justification: ZZZY; Material Document and Classification: MIL-C-24252 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.250 INCHES NOMINAL IN. 13 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.