The Nut,plain,round, cataloged under National Stock Number 5310-00-137-6524, 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 15 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 | 5310-00-137-6524 |
| Primary Part Number | S6165-62235-101 |
| 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-L-19537 MIL SPEC 1ST TREATMENT RESPONSE OR M-P-7962 MIL SPEC 2ND TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC 3RD TREATMENT RESPONSE OVERALL |
| Thread Series | UN |
| Material Document and Classification | QQ-A-225/6 TEMPER T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/3 TEMPER T42 FED SPEC 1ST MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.125 INCHES IN |
| Nut Diameter | 3.000 INCHES NOMINAL IN |
| Drive Point Depth | 0.218 INCHES NOMINAL IN |
| Nut Thickness | 0.375 INCHES NOMINAL IN |
| Surface Treatment | LACQUER OR PAINT OR ANODIZE OVERALL |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | ALUMINUM ALLOY 2024 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 |
|---|---|
| S6165-62235-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-00-137-6524 is a Nut,plain,round, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-137-6524 has 1 manufacturer part number on file: S6165-62235-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6165-62235-101: Surface Treatment Document and Classification: MIL-L-19537 MIL SPEC 1ST TREATMENT RESPONSE OR M-P-7962 MIL SPEC 2ND TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC 3RD TREATMENT RESPONSE OVERALL; Thread Series: UN; Material Document and Classification: QQ-A-225/6 TEMPER T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/3 TEMPER T42 FED SPEC 1ST MATERIAL RESPONSE OVERALL; Drive Point Width: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. 15 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.