The Sleeve,flared,tube Fitting, cataloged under National Stock Number 4730-01-070-3506, 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 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-070-3506 |
| Item Name | Sleeve,flared,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Seat Angle in Deg | 33.0 |
| Style Designator | SLEEVE |
| Sleeve Outside Diameter | 0.432 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Surface Treatment | ANODIZE |
| Flange Width | 0.172 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 |
| Flange Outside Diameter | 0.502 INCHES NOMINAL IN |
| Hose/tube Outside Diameter for Which Designed | 0.375 INCHES NOMINAL 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 |
|---|---|
| MS20819-6D | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-01-070-3506 is a Sleeve,flared,tube Fitting, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 8105-01-642-4758. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-070-3506: Seat Angle in Deg: 33.0; Style Designator: SLEEVE; Overall Length: 0.500 INCHES NOMINAL IN; Sleeve Outside Diameter: 0.432 INCHES NOMINAL IN. 9 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.