The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-488-8349, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Greer Stop Nut, Inc.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-488-8349 |
| Primary Part Number | NU-616 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Greer Stop Nut, Inc. |
| Status | ACTIVE |
| Width Across Flats | 0.669 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 250.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | MIL-N-25027 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Height | 0.763 INCHES MINIMUM AND 0.794 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | COPPER ALLOY OVERALL EXCEPT INSERT |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| NU-616 PRIMARY | Greer Stop Nut, Inc. (USA) |
| 122-6600360 PC 58 | Naval Sea Systems Command (USA) |
| 122-6600361 PC 58 | Naval Sea Systems Command (USA) |
NSN 5310-01-488-8349 is a Nut,plain,hexagon, manufactured by Greer Stop Nut, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-488-8349 has 3 manufacturer part numbers on file: NU-616 (Greer Stop Nut, Inc.), 122-6600360 PC 58 (Naval Sea Systems Command), 122-6600361 PC 58 (Naval Sea Systems Command).
Key specifications for NU-616: Width Across Flats: 0.669 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM DEGF; Material Document and Classification: MIL-N-25027 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.