The Coupling,tube, cataloged under National Stock Number 4730-01-164-1865, 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14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-164-1865 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Nominal Overall Length | 2.025 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | RIGID, SHORT CENTER WRENCHING FACILITY |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.875 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.875 INCHES FIRST END BULKHEAD IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 69-24405-1 | 3/2 Design control — primary reference U.S. Government activity |
| 69-24405-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-164-1865 is a Coupling,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-164-1865: Connection Style: PLAIN (TUBE) SECOND END; Connection Style: FLARELESS (TUBE) FIRST END; Nominal Overall Length: 2.025 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 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.
NSN 4730-01-164-1865 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.