The Flange,pipe, cataloged under National Stock Number 4730-01-259-1701, 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 John F Kennedy Space Center Dba Nasa Div Kennedy Space Center. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-259-1701 |
| Primary Part Number | KC159-6DK |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | John F Kennedy Space Center Dba Nasa Div Kennedy Space Center |
| Status | ACTIVE |
| Flange Diameter | 3.625 INCHES NOMINAL IN |
| Nominal Pipe Size for Which Designed | 2.000 INCHES IN |
| Flange Section Style | PLAIN FACE, WELDING NECK |
| Criticality Code Justification | FEAT |
| Style Designator | ROUND, NO BOLT HOLES |
| Neck Height | 2.313 INCHES NOMINAL IN |
| Material Document and Classification | SA-182-F316 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | STEEL CORROSION RESISTING |
| Thickness | 0.437 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 | Y |
| Part Number | Manufacturer |
|---|---|
| KC159-6DK PRIMARY | John F Kennedy Space Center Dba Nasa Div Kennedy Space Center (USA) |
| Reference | Meaning |
|---|---|
| 52822 | 3/9 Design control — primary reference Vetco Gray Inc |
NSN 4730-01-259-1701 is a Flange,pipe, manufactured by John F Kennedy Space Center Dba Nasa Div Kennedy Space Center, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-259-1701 has 1 manufacturer part number on file: KC159-6DK (John F Kennedy Space Center Dba Nasa Div Kennedy Space Center).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-567-3082. Verify interchangeability with system specifications before substitution.
Key specifications for KC159-6DK: Flange Diameter: 3.625 INCHES NOMINAL IN; Nominal Pipe Size for Which Designed: 2.000 INCHES IN; Flange Section Style: PLAIN FACE, WELDING NECK; Criticality Code Justification: FEAT. 9 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.