The Elbow,tube, cataloged under National Stock Number 4730-01-320-5317, 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 26 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-320-5317 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Angle | 45.0 DEGREES |
| Surface Treatment Document and Classification | QQ-P-416,TYII,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Material Document and Classification | QQ-S-637 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OR MIL-S-5002 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Leg Length | 0.885 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.727 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END BULKHEAD IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 37.0 DEGREES SECOND END |
| Specification/standard Data | 50808-AS1040 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | II STYLE |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Class | 3A SECOND END A |
| Material | STEEL COMP 1137 OR STEEL COMP 1141 OR STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| AS1040 | 5/9 Secondary reference United Supply Co Inc |
| AS1040-0408 | 3/9 Design control — primary reference United Supply Co Inc |
NSN 4730-01-320-5317 is a Elbow,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-320-5317: Flow Angle: 45.0 DEGREES; Surface Treatment Document and Classification: QQ-P-416,TYII,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) SECOND END; Connection Style: FLARED (TUBE) FIRST END. 26 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.