The Nut,plain,round, cataloged under National Stock Number 5310-00-487-4173, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rotair Aerospace Corp. 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 | 5310-00-487-4173 |
| Primary Part Number | 6485-64174-101 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rotair Aerospace Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-13924,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNS |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.781 INCHES IN |
| Nut Diameter | 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN |
| Drive Point Depth | 0.127 INCHES NOMINAL IN |
| Nut Thickness | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE OVERALL |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| 6485-64174-101 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 6485-64174-101 PRIMARY | Rotair Aerospace Corp (USA) |
NSN 5310-00-487-4173 is a Nut,plain,round, manufactured by Rotair Aerospace Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-487-4173 has 2 manufacturer part numbers on file: 6485-64174-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 6485-64174-101 (Rotair Aerospace Corp).
Key specifications for 6485-64174-101: Surface Treatment Document and Classification: MIL-C-13924,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNS; Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM; Material Document and Classification: MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.