The Valve,check, cataloged under National Stock Number 4820-00-234-5885, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Tactair Fluid Controls Inc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-234-5885 |
| Primary Part Number | 2676 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Valve Operation Method | AUTOMATIC |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | FLARELESS SECOND END |
| Disk Loading Method | SPRING |
| Material Document and Classification | QQ-A-265,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Flow Control Device | POPPET |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material Document and Classification | QQ-A-265,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Opening Pressure Setting | 45.0 POUNDS PER SQUARE INCH LBS |
| Seat Angle | 37.0 DEGREES FIRST END |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | UNF ALL ENDS |
| Material | ALUMINUM ALLOY 2024 BODY |
| Surface Treatment Document and Classification | MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Style Designator | STRAIGHT THRU |
| Surface Treatment | ANODIZE |
| Seat Angle | 12.0 DEGREES SECOND END |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY 2024 SEAT |
| Material Document and Classification | AMS 5643 17-4 PH ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-234-5885 is a Valve,check, manufactured by Tactair Fluid Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-234-5885 has 3 cross-referenced part numbers: 2676 (Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair), 2676 (Tactair Fluid Controls Inc), 2676 (Kaiser Fluid Technologies Inc.).
There are 6 known substitutes for 4820-00-234-5885: 3120-00-024-2624, 5975-00-224-5260, 5950-00-615-9788 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2676: Valve Operation Method: AUTOMATIC; Connection Style: FLARED (TUBE) FIRST END; Connection Style: FLARELESS SECOND END; Disk Loading Method: SPRING. 26 total characteristics are documented in the Federal Logistics Information System.