The Adapter,straight,flange to Flang, cataloged under National Stock Number 4730-01-425-6599, 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 Welch Vacuum Technology Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4730-01-425-6599 |
| Primary Part Number | AC50300NW016 |
| Item Name | Adapter,straight,flange to Flang |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Welch Vacuum Technology Inc |
| Status | ACTIVE |
| Flange Shape | ROUND ALL ENDS |
| Flange Face Design | RECESSED STRAIGHT ALL ENDS |
| Nominal Overall Length | 1.570 INCHES IN |
| Connection Type | FLANGE ALL ENDS |
| Media for Which Designed | VACUUM SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| AC50300NW016 PRIMARY | Welch Vacuum Technology Inc (USA) |
| AC50300NW016 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| 387121 | Welch Vacuum Technology Inc (USA) |
NSN 4730-01-425-6599 is a Adapter,straight,flange to Flang, manufactured by Welch Vacuum Technology Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-425-6599 has 3 manufacturer part numbers on file: AC50300NW016 (Welch Vacuum Technology Inc), AC50300NW016 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), 387121 (Welch Vacuum Technology Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-473-2192. Verify interchangeability with system specifications before substitution.
Key specifications for AC50300NW016: Flange Shape: ROUND ALL ENDS; Flange Face Design: RECESSED STRAIGHT ALL ENDS; Nominal Overall Length: 1.570 INCHES IN; Connection Type: FLANGE ALL ENDS. 6 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.