The Coupling,pipe, cataloged under National Stock Number 4730-01-302-4925, 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 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-302-4925 |
| 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 | 1.125 INCHES IN |
| Criticality Code Justification | ZZZY |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | RIGID, SHORT CENTER WRENCHING FACILITY |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Material | STEEL COMP 304 OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Reference Number Differentiating Characteristics | SPECIAL CLEANING FOR LOX SERVICE IAW 1552AS201 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 1551AS720 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 1551AS720-1 | 3/1 Design control — primary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4730-01-302-4925 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): 4730-01-310-7774. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-302-4925: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 1.125 INCHES IN; Criticality Code Justification: ZZZY; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 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.