The Valve Assembly, cataloged under National Stock Number 4820-00-146-4502, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-146-4502 |
| Primary Part Number | 374B |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Valve Quantity | 1 |
| End Connection Quantity | 1 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 374B | Siemens Energy, Inc. Dba Dresser-Rand (USA) |
| 374B | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 374B | Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA) |
| 374B PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
NSN 4820-00-146-4502 is a Valve Assembly, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-146-4502 has 4 cross-referenced part numbers: 374B (Siemens Energy, Inc. Dba Dresser-Rand), 374B (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 374B (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 374B (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
There are 2 known substitutes for 4820-00-146-4502: 5120-00-308-3778, 5940-01-052-2411. Verify interchangeability with system specifications before substitution.
Key specifications for 374B: Valve Quantity: 1; End Connection Quantity: 1. 2 total characteristics are documented in the Federal Logistics Information System.