The Valve,check, cataloged under National Stock Number 4820-01-027-2231, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Williams International Co., L.l.c.. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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 | 4820-01-027-2231 |
| Primary Part Number | 22863 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Williams International Co., L.l.c. |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Operating Pressure | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND SECOND END |
| Material | STEEL CORROSION RESISTING BODY |
| Connection Style | FLARED (TUBE) FIRST END |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Valve Operation Method | AUTOMATIC |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Material | RUBBER SYNTHETIC SEAT |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Flow Control Device | POPPET |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Seat Angle | 37.0 DEGREES FIRST END |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Thread Class | 3A FIRST END A |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Thread Class | 3A SECOND END A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-027-2231 is a Valve,check, manufactured by Williams International Co., L.l.c., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-027-2231 has 3 cross-referenced part numbers: 3C2168-1 (Crissair Inc Div Esco Technologies), 3C2168 (Crissair Inc Div Esco Technologies), 22863 (Williams International Co., L.l.c.).
There are 4 known substitutes for 4820-01-027-2231: 5895-00-126-6335, 5330-00-623-0478, 5310-01-074-6881 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 22863: Style Designator: STRAIGHT THRU; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END; Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Nominal Outside Diameter Tube Accommodated: 0.250 INCHES SECOND END IN. 25 total characteristics are documented in the Federal Logistics Information System.