The Nut,plain,round, cataloged under National Stock Number 5310-00-373-3296, 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 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-373-3296 |
| Primary Part Number | 4001874 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.250 INCHES IN |
| Nut Diameter | 2.840 INCHES MINIMUM AND 2.850 INCHES MAXIMUM IN |
| Drive Point Depth | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Nut Thickness | 0.295 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN |
| Drive Point Quantity | 20 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 8740 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 4001874 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4001874 | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 5310PL0723159 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4001874 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 5310-00-373-3296 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 5310-00-373-3296 has 2 manufacturer part numbers on file: 4001874 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4001874 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 4001874: Thread Series: UNIFIED NATIONAL JOINT (UNJ); Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM; Material Document and Classification: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN. 14 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.