The Valve,check, cataloged under National Stock Number 4820-00-901-8839, 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 17 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-901-8839 |
| Primary Part Number | 2C5380 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crissair Inc Div Esco Technologies |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Surface Treatment | PASSIVATE |
| Style Designator | STRAIGHT THRU |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Class | 3A ALL ENDS A |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Flow Control Device | POPPET |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Opening Pressure Setting | 5.0 POUNDS PER SQUARE INCH LBS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-901-8839 is a Valve,check, manufactured by Crissair Inc Div Esco Technologies, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-901-8839 has 4 cross-referenced part numbers: 2C5380 (Crissair Inc Div Esco Technologies), 2315-8 (Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair), 2315-8 (Kaiser Fluid Technologies Inc.), 2315-8 (Tactair Fluid Controls Inc).
There are 4 known substitutes for 4820-00-901-8839: 1005-00-867-5370, 5930-01-047-8056, 7045-01-048-3744 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2C5380: Material: STEEL CORROSION RESISTING OVERALL; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS; Surface Treatment: PASSIVATE; Style Designator: STRAIGHT THRU. 17 total characteristics are documented in the Federal Logistics Information System.