The Nut,plain,round, cataloged under National Stock Number 5310-01-183-2251, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-183-2251 |
| Primary Part Number | 4061622 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Flange Thickness | 0.200 INCHES NOMINAL IN |
| Thread Series | UNJEF |
| Material Document and Classification | AMS6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS6323 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.5625 INCHES IN |
| Nut Diameter | 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN |
| Drive Point Depth | 0.060 INCHES NOMINAL IN |
| Undercut Thickness | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Nut Thickness | 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN |
| Small End Diameter | 1.720 INCHES MINIMUM AND 1.740 INCHES MAXIMUM IN |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| 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 | F |
NSN 5310-01-183-2251 is a Nut,plain,round, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-183-2251 has 2 manufacturer part numbers on file: 4061622 (Rtx Corporation Div Pratt & Whitney), 4061622 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4061622: Flange Thickness: 0.200 INCHES NOMINAL IN; Thread Series: UNJEF; Material Document and Classification: AMS6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS6323 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Drive Point Width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. 16 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.