The Union,pipe, cataloged under National Stock Number 4730-01-421-3459, 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 2 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-421-3459 |
| Primary Part Number | 018345-FI/BV |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Bec Systems Llc Dba Bec Machine Products |
| Status | ACTIVE |
| Material Document and Classification | MIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | COPPER ALLOY 715 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 |
|---|---|
| 018345-FI/BV | Bec Systems Llc Dba Bec Machine Products (USA) |
| 6915-200 | Lbc Aquisitions Llc Dba Lee Brass Div Lee Brass Foundry, Llc (USA) |
| Reference | Meaning |
|---|---|
| 00699067686410 | 5/1 Secondary reference Flagg Stanley G & Co Inc Dba Flagg Brass |
| 77301200 | 5/9 Secondary reference W & O Supply Inc |
| 77301200 1 INCH SW | 5/9 Secondary reference W & O Supply Inc |
| 77301200 70/30 CUNI | 5/9 Secondary reference W & O Supply Inc |
| 6915-200 | 3/9 Design control — primary reference Flagg Stanley G & Co Inc Dba Flagg Brass |
| 47950-16 | 5/9 Secondary reference Nucraloy Corp |
| 77301200 1 INCH | C/1 Advisory reference — outside the item-of-supply concept W & O Supply Inc |
NSN 4730-01-421-3459 is a Union,pipe, manufactured by Bec Systems Llc Dba Bec Machine Products, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-421-3459 has 2 manufacturer part numbers on file: 018345-FI/BV (Bec Systems Llc Dba Bec Machine Products), 6915-200 (Lbc Aquisitions Llc Dba Lee Brass Div Lee Brass Foundry, Llc).
Key specifications for 018345-FI/BV: Material Document and Classification: MIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Special Features: 0-RING RETAINING RING INCLUDED;O-RING MATERIAL IS MIL-R-83248 AND MIL-R-93248/1CLASS 1 RUBBER, RETAINING RING 7-/30 CUNI; Material: COPPER ALLOY 715 OVERALL. 2 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.