The Valve,check, cataloged under National Stock Number 4820-01-165-7964, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-165-7964 |
| Primary Part Number | 90203-000 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| Connection Style | STREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Valve Operation Method | AUTOMATIC |
| Mounting Position | HORIZONTAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2621-927-01 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 90203-000 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 2621-927-01 ASSEMBLY AS 1/2IN | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| NS-4038 | National Oilwell (USA) |
| NS-4038 ASSEMBLY AS 1/2IN | National Oilwell (USA) |
NSN 4820-01-165-7964 is a Valve,check, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-165-7964 has 5 cross-referenced part numbers: 2621-927-01 (Electric Boat Corporation Div General Dynamics Electric Boat), 90203-000 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 2621-927-01 ASSEMBLY AS 1/2IN (Electric Boat Corporation Div General Dynamics Electric Boat), NS-4038 (National Oilwell), NS-4038 ASSEMBLY AS 1/2IN (National Oilwell).
There are 11 known substitutes for 4820-01-165-7964: 4820-01-027-8966, 4820-01-087-2224, 4820-01-125-9746 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 90203-000: Material: COPPER ALLOY BODY; Connection Style: STREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS; Style Designator: STRAIGHT THRU; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS. 9 total characteristics are documented in the Federal Logistics Information System.