The Coupling,pipe, cataloged under National Stock Number 4730-01-036-3456, 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 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-036-3456 |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 1.375 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | PLAIN |
| Material Document and Classification | ASTMA181,GRADE 2 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Maximum Operating Temp | 297.7 CELSIUS SINGLE RESPONSE DEGC |
| Surface Treatment | ZINC INSIDE |
| Surface Treatment | ZINC OUTSIDE |
| Material | STEEL BODY |
| 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 |
|---|---|
| 4971-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-036-3456 is a Coupling,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-036-3456: Surface Treatment Document and Classification: QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE; Surface Treatment Document and Classification: QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE; Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 1.375 INCHES IN. 14 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.