The Reducer,tube, cataloged under National Stock Number 4730-00-115-3864, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Rockwell International Corp North American Aircraft Opns. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-115-3864 |
| Primary Part Number | HE273-0033-0001 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Rockwell International Corp North American Aircraft Opns |
| Status | ACTIVE |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Reducer Type | CONCENTRIC |
| Thread Series Designator | UNF ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Connection Style | FLARED (TUBE) SECOND END |
| Thread Class | 3A ALL ENDS A |
| Seat Angle | 37.0 DEGREES SECOND END |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Seat Angle | 12.0 DEGREES FIRST END |
| Nominal Overall Length | 1.890 INCHES IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Surface Treatment | ANODIZE OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| HE273-0033-0001 | Rockwell International Corp North American Aircraft Opns (USA) |
| 21443 | Tech Aero Inc (USA) |
NSN 4730-00-115-3864 is a Reducer,tube, manufactured by Rockwell International Corp North American Aircraft Opns, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-115-3864 has 2 cross-referenced part numbers: HE273-0033-0001 (Rockwell International Corp North American Aircraft Opns), 21443 (Tech Aero Inc).
There are 10 known substitutes for 4730-00-115-3864: 5310-00-208-2855, 3120-00-354-6406, 6625-00-525-0488 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for HE273-0033-0001: Material Document and Classification: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Outside Diameter Tube Accommodated: 0.250 INCHES SECOND END IN; Reducer Type: CONCENTRIC; Thread Series Designator: UNF ALL ENDS. 15 total characteristics are documented in the Federal Logistics Information System.