The Nut,plain,octagon, cataloged under National Stock Number 5310-01-282-8194, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-282-8194 |
| Primary Part Number | NMP-227 PIECE 33 |
| Item Name | Nut,plain,octagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Width Across Flats | 4.0469 INCHES NOMINAL IN |
| Thread Series | UNS |
| Material Document and Classification | ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 3.500 INCHES IN |
| Counterbore Diameter | 3.090 INCHES NOMINAL FIRST END IN |
| Counterbore Diameter | 3.406 INCHES NOMINAL NUT IN |
| Nut Height | 1.1562 INCHES NOMINAL IN |
| Nut Style | PLAIN, OCTAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 10 |
| Material | COPPER ALLOY 836 OVERALL |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| NMP-227 PIECE 33 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5310-01-282-8194 is a Nut,plain,octagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-282-8194 has 1 manufacturer part number on file: NMP-227 PIECE 33 (Naval Inventory Control Point Mechanicsburg).
Key specifications for NMP-227 PIECE 33: Width Across Flats: 4.0469 INCHES NOMINAL IN; Thread Series: UNS; Material Document and Classification: ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 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.