The Union,pipe, cataloged under National Stock Number 4730-01-665-3826, 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 Flagg Stanley G & Co Inc Dba Flagg Brass. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-665-3826 |
| Primary Part Number | 6815-200 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Flagg Stanley G & Co Inc Dba Flagg Brass |
| Status | ACTIVE |
| Nominal Length | 2.437 INCHES ALL ENDS IN |
| Material | COPPER ALLOY 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 |
|---|---|
| 6815-200 PRIMARY | Flagg Stanley G & Co Inc Dba Flagg Brass (USA) |
| Reference | Meaning |
|---|---|
| 545-8464570ITEMF-4 | C/1 Advisory reference — outside the item-of-supply concept Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4730-01-665-3826 is a Union,pipe, manufactured by Flagg Stanley G & Co Inc Dba Flagg Brass, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-665-3826 has 1 manufacturer part number on file: 6815-200 (Flagg Stanley G & Co Inc Dba Flagg Brass).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-668-6991. Verify interchangeability with system specifications before substitution.
Key specifications for 6815-200: Nominal Length: 2.437 INCHES ALL ENDS IN; Part Name Assigned by Controlling Agency: FFW SOCKET WELD UNION ASSEMBLY, SIZE 1"; Material: COPPER ALLOY 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.