The Nut,self-Locking,cone Seat,hexag, cataloged under National Stock Number 5310-00-537-8141, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Viking Technologies, Ltd.. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-537-8141 |
| Primary Part Number | 5P217C |
| Item Name | Nut,self-Locking,cone Seat,hexag |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Viking Technologies, Ltd. |
| Status | ACTIVE |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Thread Series | UN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.438 INCHES NOMINAL IN |
| Nut Style | CONE SEAT, HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING NUT |
| Material | RUBBER NATURAL LOCKING INSERT |
| 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 |
|---|---|
| 5P217C PRIMARY | Viking Technologies, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| AS1209 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-537-8141 is a Nut,self-Locking,cone Seat,hexag, manufactured by Viking Technologies, Ltd., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-537-8141 has 1 manufacturer part number on file: 5P217C (Viking Technologies, Ltd.).
Key specifications for 5P217C: Width Across Flats: 0.625 INCHES NOMINAL IN; Thread Series: UN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.375 INCHES IN. 11 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.