The Reducer,boss, cataloged under National Stock Number 4730-00-474-1698, 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 Hydro-Aire Aerospace Corp. Government technical data includes 15 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-474-1698 |
| Primary Part Number | 11618 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Hydro-Aire Aerospace Corp |
| Status | ACTIVE |
| Thread Class | 3B FIRST END |
| Thread Class | 3A SECOND END A |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Surface Treatment | PASSIVATE INSIDE |
| Reducer Type | CONCENTRIC |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Surface Treatment | PASSIVATE OUTSIDE |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Thread Series Designator | UNF FIRST END |
| Material | STEEL OVERALL |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Thread Series Designator | UNF SECOND END |
| Nominal Overall Length | 0.672 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 11618 PRIMARY | Hydro-Aire Aerospace Corp (USA) |
NSN 4730-00-474-1698 is a Reducer,boss, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-474-1698 has 1 cross-referenced part number: 11618 (Hydro-Aire Aerospace Corp).
There are 4 known substitutes for 4730-00-474-1698: 5310-00-216-3116, 5340-01-118-4860, 5330-01-348-8351 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 11618: Thread Class: 3B FIRST END; Thread Class: 3A SECOND END A; Nominal Thread Size: 0.562 INCHES FIRST END IN; Connection Type: THREADED INTERNAL BOSS FIRST END. 15 total characteristics are documented in the Federal Logistics Information System.