The Valve,check, cataloged under National Stock Number 4820-01-157-6367, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crissair Inc Div Esco Technologies. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-157-6367 |
| Primary Part Number | 2C5660 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crissair Inc Div Esco Technologies |
| Status | ACTIVE |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Flow Control Device | POPPET |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Material | STEEL COMP 440A FLOW CONTROL DEVICE A |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Thread Class | 3A SECOND END A |
| Valve Operation Method | AUTOMATIC |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Style | FLARELESS SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Material | STEEL CORROSION RESISTING BODY |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Thread Direction | RIGHT-HAND SECOND END |
| Connection Style | FLARELESS FIRST END |
| Nominal Thread Size | 0.5625 INCHES SECOND END IN |
| Thread Class | 3A FIRST END A |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Seat Angle | 12.0 DEGREES FIRST END |
| Seat Angle | 12.0 DEGREES SECOND END |
| Style Designator | STRAIGHT THRU |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-157-6367 is a Valve,check, manufactured by Crissair Inc Div Esco Technologies, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-157-6367 has 2 cross-referenced part numbers: 50099 (Mission Systems Davenport Inc.), 2C5660 (Crissair Inc Div Esco Technologies).
There are 12 known substitutes for 4820-01-157-6367: 5950-00-118-2884, 5330-00-292-1593, 5306-00-405-2658 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2C5660: Nominal Thread Size: 0.750 INCHES FIRST END IN; Connection Type: THREADED EXTERNAL TUBE FIRST END; Flow Control Device: POPPET; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE. 25 total characteristics are documented in the Federal Logistics Information System.