The Elbow,pipe to Tube, cataloged under National Stock Number 4730-01-253-8585, 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 12 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-253-8585 |
| Item Name | Elbow,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | SWIVEL, PLAIN (PIPE) SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Material Document and Classification | QQ-A-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Leg Length | 1.380 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.734 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Material | COPPER ALLOY 360 OVERALL |
| Thread Series Designator | NPTF SECOND END |
| 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 |
|---|---|
| 8431425 | 7/1 Vendor item drawing reference U.S. Government activity |
| 8431425-1 | 5/2 Secondary reference U.S. Government activity |
| W169PLP-4-4 | 3/2 Design control — primary reference U.S. Government activity |
| 169PL-4-4 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-253-8585 is a Elbow,pipe to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-254-9853. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-253-8585: Flow Angle: 90.0 DEGREES; Connection Style: SWIVEL, PLAIN (PIPE) SECOND END; Connection Style: SOCKET (TUBE) FIRST END; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 12 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.