The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-239-5789, 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 Mine Safety Appliances Company. 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. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-239-5789 |
| Primary Part Number | 69541 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mine Safety Appliances Company |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.250 INCHES SECOND END IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Thread Class | 3B FIRST END |
| Thread Series Designator | NPT SECOND END |
| Thread Series Designator | UNF FIRST END |
| 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 |
|---|---|
| 69541 PRIMARY | Mine Safety Appliances Company (USA) |
NSN 4730-00-239-5789 is a Adapter,straight,pipe to Tube, manufactured by Mine Safety Appliances Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-239-5789 has 1 manufacturer part number on file: 69541 (Mine Safety Appliances Company).
4 possible matches (shared part number, not a government interchangeability claim): 4320-00-479-4533, 5310-01-082-6627, 6220-01-586-4992. Verify interchangeability with system specifications before substitution.
Key specifications for 69541: Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN; Connection Type: THREADED EXTERNAL PIPE SECOND END; Connection Type: THREADED INTERNAL TUBE FIRST END; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN. 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.