The Nut,plain,round, cataloged under National Stock Number 5310-00-923-2569, 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 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-923-2569 |
| Primary Part Number | 6435-20047-102 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Flange Thickness | 0.105 INCHES NOMINAL IN |
| Thread Series | UNEF |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| Drive Point Width | 0.188 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.812 INCHES IN |
| Nut Diameter | 1.304 INCHES NOMINAL IN |
| Drive Point Depth | 0.072 INCHES NOMINAL IN |
| Undercut Thickness | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Nut Thickness | 0.250 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Countersink Angle | 90.0 DEGREES NOMINAL BOTH ENDS |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4130 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 |
|---|---|
| S6435-20047-102 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 6435-20047-102 | Mcmellon Bros., Incorporated Dba Mc Mellon Brothers Inc (USA) |
| 6435-20047-102 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-00-923-2569 is a Nut,plain,round, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-923-2569 has 3 manufacturer part numbers on file: S6435-20047-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 6435-20047-102 (Mcmellon Bros., Incorporated Dba Mc Mellon Brothers Inc), 6435-20047-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 6435-20047-102: Flange Thickness: 0.105 INCHES NOMINAL IN; Thread Series: UNEF; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM; Drive Point Width: 0.188 INCHES NOMINAL IN. 17 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.