The Nut,plain,round, cataloged under National Stock Number 5310-00-050-8292, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 17 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through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-050-8292 |
| Primary Part Number | 504201 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Thread Series | UN |
| Hole Configuration Style | CONFIGURATION F |
| Nut Counterbore Depth | 0.125 INCHES NOMINAL NUT IN |
| Drive Point Width | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.625 INCHES IN |
| Nut Diameter | 2.750 INCHES NOMINAL IN |
| Counterbore Diameter | 2.500 INCHES NOMINAL NUT IN |
| Drive Point Depth | 0.063 INCHES NOMINAL IN |
| Nut Thickness | 0.688 INCHES NOMINAL IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Hole Nominal Thread Diameter | 0.375 INCHES IN |
| Thread Quantity Per Inch | 16 |
| Material | STEEL NUT |
| Hole Type and Quantity | 2 TAPPED |
| 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 |
|---|---|
| 504201 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| N566A1161 | C/1 Advisory reference — outside the item-of-supply concept Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| A1161PCN566 | 5/9 Secondary reference U.S. Government activity |
| NH7472PC566 | 5/2 Secondary reference U.S. Government activity |
| A1161A | C/1 Advisory reference — outside the item-of-supply concept Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| A1161A | 3/2 Design control — primary reference U.S. Government activity |
| N566A1161 | 5/2 Secondary reference U.S. Government activity |
| 504201 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| NH7472PC566 | C/1 Advisory reference — outside the item-of-supply concept Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| A1161PCN566 | C/1 Advisory reference — outside the item-of-supply concept Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| 504201 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 504201 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-050-8292 is a Nut,plain,round, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-050-8292 has 1 manufacturer part number on file: 504201 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
1 possible match (shared part number, not a government interchangeability claim): 5895-00-790-2785. Verify interchangeability with system specifications before substitution.
Key specifications for 504201: Thread Series: UN; Hole Configuration Style: CONFIGURATION F; Nut Counterbore Depth: 0.125 INCHES NOMINAL NUT IN; Drive Point Width: 0.250 INCHES NOMINAL IN. 17 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.