The Coupling,pipe, cataloged under National Stock Number 4730-01-239-0242, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-239-0242 |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 1.380 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Specification/standard Data | 80204-B16.11 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B16.11 | 3/1 Design control — primary reference U.S. Government activity |
| ANSIB16.5 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| ANSI-B16.5 TBL1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| ANSI-B16.11 .25 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| QQ-N-281 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-01-239-0242 is a Coupling,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-262-0980. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-239-0242: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 1.380 INCHES IN; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: PLAIN. 10 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.