The Nut,plain,round, cataloged under National Stock Number 5310-00-550-0816, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-550-0816 |
| Primary Part Number | 4856P |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Thread Series | UNF |
| Material Document and Classification | MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Nut Diameter | 1.984 INCHES MINIMUM AND 2.016 INCHES MAXIMUM IN |
| Nut Thickness | 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN |
| Drive Point Diameter | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Drive Point Quantity | 2 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 4856P PRIMARY | Westinghouse Electric Corp (USA) |
| H5310-550-0816 | Naval Inventory Control Point Mechanicsburg (USA) |
| 55-22018-46 | Euramco Safety Inc (USA) |
| Reference | Meaning |
|---|---|
| 4856-P | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-00-550-0816 is a Nut,plain,round, manufactured by Westinghouse Electric Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-550-0816 has 3 manufacturer part numbers on file: 4856P (Westinghouse Electric Corp), H5310-550-0816 (Naval Inventory Control Point Mechanicsburg), 55-22018-46 (Euramco Safety Inc).
Key specifications for 4856P: Thread Series: UNF; Material Document and Classification: MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.750 INCHES IN. 12 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.