The Nut,plain,round, cataloged under National Stock Number 5310-00-208-4289, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Siemens Energy, Inc.. 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 | 5310-00-208-4289 |
| Primary Part Number | H443C |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Thread Series | UN |
| Hole Configuration Style | CONFIGURATION J |
| Material Document and Classification | MIL-S-16782 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.000 INCHES IN |
| Nut Diameter | 2.500 INCHES NOMINAL IN |
| Nut Thickness | 0.438 INCHES NOMINAL IN |
| Drive Point Diameter | 0.203 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.250 INCHES NOMINAL IN |
| Drive Point Quantity | 2 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 1010 OR STEEL COMP 1015 OVERALL |
| Hole Type and Quantity | 1 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 |
|---|---|
| H443C PRIMARY | Siemens Energy, Inc. (USA) |
NSN 5310-00-208-4289 is a Nut,plain,round, manufactured by Siemens Energy, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-208-4289 has 1 manufacturer part number on file: H443C (Siemens Energy, Inc.).
Key specifications for H443C: Thread Series: UN; Hole Configuration Style: CONFIGURATION J; Material Document and Classification: MIL-S-16782 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Thread Direction: RIGHT-HAND. 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.