The Elbow,flange to Tube, cataloged under National Stock Number 4730-01-138-6455, 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 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-138-6455 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Furnished Items and Quantity | 5 LONG COUPLING NUT AND 5 FLAT WASHER |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Nominal Length | 2.750 INCHES SECOND END IN |
| Tubing Wall Nominal Thickness for Which Designed | 0.154 INCHES FIRST END IN |
| Tubing Wall Nominal Thickness for Which Designed | 0.154 INCHES FIRST ENDUNABLE TO DECODE IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Material Document and Classification | QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE |
| Material Document and Classification | QQ-S-763,CL 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-S-763,CL 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODYUNABLE TO DECODE |
| Bolt Hole Nominal Diameter | 0.469 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.111 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Leg Length | 2.375 INCHES NOMINAL ALL ENDS IN |
| Leg Length | 1.046 INCHES NOMINAL FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.875 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Nominal Width | 2.750 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.875 INCHES SECOND END IN |
| Media for Which Designed | HYDRAULIC FLUID SECOND RESPONSE |
| Material | STEEL CORROSION RESISTING BODY |
| Material | ALUMINUM ALLOY SLEEVE |
| Material | STEEL CORROSION RESISTING BODYUNABLE TO DECODE |
| Raised Face Nominal Diameter | 2.872 INCHES SECOND END IN |
| Raised Face Nominal Height | 0.250 INCHES SECOND END IN |
| Nominal Thickness | 1.840 INCHES SECOND END IN |
| 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 |
|---|---|
| 845-467601ASSY108MOD | 3/2 Design control — primary reference U.S. Government activity |
| 14-04-5059 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-138-6455 is a Elbow,flange 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): 2815-01-216-0633. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-138-6455: Flange Shape: RECTANGULAR WITH HOLES SECOND END; Furnished Items and Quantity: 5 LONG COUPLING NUT AND 5 FLAT WASHER; Flow Angle: 90.0 DEGREES; Flange Face Design: RAISED STRAIGHT SECOND END. 29 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.