The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-242-2834, 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 Lockheed Martin Corp. Government technical data includes 18 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-242-2834 |
| Primary Part Number | ST57D69-1 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Lockheed Martin Corp |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LOCKNUT |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Nominal Overall Length | 2.060 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END BULKHEAD IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A FIRST END A |
| Thread Class | 2A FIRST END BULKHEAD A |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | NPTF SECOND END |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | UNF FIRST END BULKHEAD |
| 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 |
|---|---|
| 6WGTX-WLN-SS | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| ST57D69-1 PRIMARY | Lockheed Martin Corp (USA) |
| Reference | Meaning |
|---|---|
| AC1109-6SS | 5/2 Secondary reference U.S. Government activity |
| 8431412 | 5/9 Secondary reference U.S. Government activity |
| 6WGTX-WLN-SS | 5/9 Secondary reference U.S. Government activity |
| AC1109-6 | 5/9 Secondary reference U.S. Government activity |
| 6WGTX-WLN-SS | 5/9 Secondary reference Parker-Hannifin Corporation Div Gas Turbine Fuel Systems |
| 6WGTX-WLN-SS | 5/9 Secondary reference U.S. Government activity |
| ST57D69 | 7/2 Vendor item drawing reference Lockheed Martin Corp |
NSN 4730-01-242-2834 is a Adapter,straight,pipe to Tube, manufactured by Lockheed Martin Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-242-2834 has 2 manufacturer part numbers on file: 6WGTX-WLN-SS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), ST57D69-1 (Lockheed Martin Corp).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-269-1552. Verify interchangeability with system specifications before substitution.
Key specifications for ST57D69-1: Furnished Items and Quantity: 1 LOCKNUT; Connection Style: FLARED (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Nominal Overall Length: 2.060 INCHES IN. 18 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.