The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-375-8968, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Seal Science, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-375-8968 |
| Primary Part Number | 270-00014 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Seal Science, Inc. |
| Status | ACTIVE |
| Width Across Flats | 0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Nut Height | 0.261 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 270-00014 | Seal Science, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 270-00014 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-375-8968 is a Nut,plain,hexagon, manufactured by Seal Science, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-375-8968 has 1 manufacturer part number on file: 270-00014 (Seal Science, Inc.).
Key specifications for 270-00014: Width Across Flats: 0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.312 INCHES IN. 10 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.