The Nut,union, cataloged under National Stock Number 4730-01-214-1352, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Bec Systems Llc Dba Bec Machine Products. Government technical data includes 16 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 | 4730-01-214-1352 |
| Primary Part Number | 803-1385850 PC2 |
| Item Name | Nut,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Bec Systems Llc Dba Bec Machine Products |
| Status | ACTIVE |
| Width Across Flats | 0.688 INCHES NOMINAL IN |
| Shoulder Step Width | 0.100 INCHES NOMINAL IN |
| Shoulder Width | 0.119 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.562 INCHES IN |
| Specification/standard Data | 81349-MIL-I-18997 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 5 FIGURE |
| Nut Height | 0.438 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Smallest Inside Diameter | 0.395 INCHES NOMINAL IN |
| Shoulder Seat Diameter | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| 803-1385850 PC2 PRIMARY | Bec Systems Llc Dba Bec Machine Products (USA) |
NSN 4730-01-214-1352 is a Nut,union, manufactured by Bec Systems Llc Dba Bec Machine Products, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-214-1352 has 1 manufacturer part number on file: 803-1385850 PC2 (Bec Systems Llc Dba Bec Machine Products).
Key specifications for 803-1385850 PC2: Width Across Flats: 0.688 INCHES NOMINAL IN; Shoulder Step Width: 0.100 INCHES NOMINAL IN; Shoulder Width: 0.119 INCHES NOMINAL IN; Thread Series: UNF. 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.