The Valve,check, cataloged under National Stock Number 4820-00-045-5064, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is National Oilwell. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-045-5064 |
| Primary Part Number | 2621-927-01ASSYIAS1-2IN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | National Oilwell |
| Status | CANCELLED |
| Style Designator | STRAIGHT THRU |
| Material | COPPER ALLOY 903 SEAT |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | COPPER ALLOY 903 BODY |
| Connection Style | SOCKET WITH BRAZING RING (PIPE) FIRST END |
| Flow Control Device | DISK |
| Valve Operation Method | AUTOMATIC |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2620-927X1ASSY8BA | National Oilwell (USA) |
| NS-4038 ASSEMBLY IA1-2IN | National Oilwell (USA) |
| 2621-927-01ASSYIAS1-2IN PRIMARY | National Oilwell (USA) |
NSN 4820-00-045-5064 is a Valve,check, manufactured by National Oilwell, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-045-5064 has 3 cross-referenced part numbers: 2620-927X1ASSY8BA (National Oilwell), NS-4038 ASSEMBLY IA1-2IN (National Oilwell), 2621-927-01ASSYIAS1-2IN (National Oilwell).
There is 1 known substitute for 4820-00-045-5064: 4820-01-133-2290. Verify interchangeability with system specifications before substitution.
Key specifications for 2621-927-01ASSYIAS1-2IN: Style Designator: STRAIGHT THRU; Material: COPPER ALLOY 903 SEAT; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE; Material: COPPER ALLOY 903 BODY. 8 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-045-5064 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.