The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-190-7465, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Cincinnati Gearing Systems Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-190-7465 |
| Primary Part Number | 5750449-1 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Cincinnati Gearing Systems Inc |
| Status | ACTIVE |
| Lubrication | SOLUBLE LUBRICANT |
| Thread Series | UN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.380 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.875 INCHES IN |
| Nut Diameter | 3.620 INCHES NOMINAL IN |
| Drive Point Depth | 0.190 INCHES NOMINAL IN |
| Undercut Thickness | 0.120 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Thickness | 0.650 INCHES NOMINAL IN |
| Small End Diameter | 2.936 INCHES MINIMUM AND 2.946 INCHES MAXIMUM IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | IRON ALLOY 660 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 |
|---|---|
| 5750449-1 PRIMARY | Cincinnati Gearing Systems Inc (USA) |
| 241-5750449 | Cincinnati Gearing Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 241-5750449 | 5/9 Secondary reference The Cincinnati Gear Company Dba Power Transmission Systems |
| 5750449-1 | 3/9 Design control — primary reference The Cincinnati Gear Company Dba Power Transmission Systems |
NSN 5310-01-190-7465 is a Nut,self-Locking,round, manufactured by Cincinnati Gearing Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-190-7465 has 2 manufacturer part numbers on file: 5750449-1 (Cincinnati Gearing Systems Inc), 241-5750449 (Cincinnati Gearing Systems Inc).
Key specifications for 5750449-1: Lubrication: SOLUBLE LUBRICANT; Thread Series: UN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM; Material Document and Classification: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 18 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.