The Elbow,flange to Hose, cataloged under National Stock Number 4730-00-394-4637, 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 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-394-4637 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Surface Treatment Document and Classification | MIL-C-5541,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | BEADED (HOSE) SECOND END |
| Nominal Length | 3.380 INCHES FIRST END IN |
| Nominal Inside Diameter Hose Accommodated | 1.500 INCHES SECOND END IN |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Material Document and Classification | QQ-A-250/11 FED SPEC 1ST MATERIAL RESPONSE OR WW-T-700/6,TYPE 1,TEMPER 0 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Leg Length | 4.000 INCHES NOMINAL FIRST END IN |
| Leg Length | 4.750 INCHES NOMINAL SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.375 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Surface Treatment | OXIDE FILM OVERALL |
| Nominal Width | 2.380 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 2.380 INCHES FIRST END IN |
| Nominal Thickness | 0.250 INCHES FIRST 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 |
|---|---|
| 7242885-10 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-00-394-4637 is a Elbow,flange to Hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-394-4637: Flange Shape: RECTANGULAR WITH HOLES FIRST END; Flow Angle: 90.0 DEGREES; Flange Face Design: PLAIN FIRST END; Surface Treatment Document and Classification: MIL-C-5541,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 18 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.