The Nut,plain,round, cataloged under National Stock Number 5310-01-135-1183, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 19 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 | 5310-01-135-1183 |
| Primary Part Number | 65391-11724-101 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-13954 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Flange Thickness | 0.250 INCHES NOMINAL IN |
| Thread Series | UNS |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-5000,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Thread Direction | LEFT-HAND |
| Nominal Thread Size | 1.967 INCHES IN |
| Nut Diameter | 2.220 INCHES MINIMUM AND 2.230 INCHES MAXIMUM IN |
| Drive Point Depth | 0.133 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN |
| Undercut Thickness | 0.060 INCHES NOMINAL IN |
| Nut Thickness | 0.550 INCHES NOMINAL IN |
| Surface Treatment | OXIDE OVERALL |
| Countersink Angle | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM BOTH ENDS |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4340 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 |
|---|---|
| 65391-11724-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-01-135-1183 is a Nut,plain,round, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-135-1183 has 1 manufacturer part number on file: 65391-11724-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 65391-11724-101: Surface Treatment Document and Classification: MIL-C-13954 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Flange Thickness: 0.250 INCHES NOMINAL IN; Thread Series: UNS; Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. 19 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.