The Nut,plain,round, cataloged under National Stock Number 5310-01-092-6955, 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 22 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 | 5310-01-092-6955 |
| Primary Part Number | 70351-08173-101 |
| 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 | SS8487 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Flange Thickness | 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Hole Configuration Style | CONFIGURATION F |
| Material Document and Classification | AMS6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 4.125 INCHES IN |
| Nut Diameter | 4.730 INCHES NOMINAL IN |
| Drive Point Depth | 0.165 INCHES NOMINAL IN |
| Undercut Thickness | 0.060 INCHES NOMINAL IN |
| Nut Thickness | 0.435 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.218 INCHES NOMINAL IN |
| Surface Treatment | SILVER OVERALL |
| Precious Material and Location | SURFACE SILVER |
| Drive Point Quantity | 9 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Hole Type and Quantity | 9 DRILLED |
| 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 |
|---|---|
| 70351-08173-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-01-092-6955 is a Nut,plain,round, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-092-6955 has 1 manufacturer part number on file: 70351-08173-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70351-08173-101: Surface Treatment Document and Classification: SS8487 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Flange Thickness: 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT (UNJ); Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. 22 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.