The Reducer,boss, cataloged under National Stock Number 4730-01-003-3296, 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 Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes). Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-003-3296 |
| Primary Part Number | 274-81 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes) |
| Status | ACTIVE |
| Thread Quantity Per Inch | 16 FIRST END |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Overall Length | 0.800 INCHES IN |
| Thread Class | 3B FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Surface Treatment | PASSIVATE OUTSIDE |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Thread Series Designator | UNF FIRST END |
| Nominal Thread Size | 0.812 INCHES SECOND END IN |
| Reducer Type | CONCENTRIC |
| Thread Series Designator | UN SECOND END |
| Thread Class | 3A SECOND END A |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Surface Treatment | PASSIVATE INSIDE |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 274-81 PRIMARY | Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes) (USA) |
NSN 4730-01-003-3296 is a Reducer,boss, manufactured by Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes), classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-003-3296 has 1 cross-referenced part number: 274-81 (Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)).
There are 5 known substitutes for 4730-01-003-3296: 5120-00-277-8306, 4720-01-268-8892, 5985-01-350-4135 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 274-81: Thread Quantity Per Inch: 16 FIRST END; Material: STEEL CORROSION RESISTING OVERALL; Nominal Overall Length: 0.800 INCHES IN; Thread Class: 3B FIRST END. 16 total characteristics are documented in the Federal Logistics Information System.