The Valve,check, cataloged under National Stock Number 4820-00-626-1873, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Koehring Co. Government technical data includes 21 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-626-1873 |
| Primary Part Number | 4305002 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Koehring Co |
| Status | ACTIVE |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Series Designator | ANPT ALL ENDS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE |
| Material | STEEL COMP 1117 BODY |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Surface Treatment | CADMIUM |
| Material Document and Classification | FED STD 66,AISI/SAE 1117 FED STD SINGLE MATERIAL RESPONSE BODY |
| Style Designator | STRAIGHT THRU |
| Flow Control Device | POPPET |
| Material | STEEL COMP 440A FLOW CONTROL DEVICE A |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Disk Loading Method | SPRING |
| Material Document and Classification | FED STD 66,AISI/SAE 1117 FED STD SINGLE MATERIAL RESPONSE SEAT |
| Material | STEEL COMP 1117 SEAT |
| Material Document and Classification | QQ-S-763,CLASS 440A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE A |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-626-1873 is a Valve,check, manufactured by Koehring Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-626-1873 has 3 cross-referenced part numbers: 4305002 (Koehring Co), 4305002 (Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co), 459-1-4S (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit).
There are 2 known substitutes for 4820-00-626-1873: 5330-00-146-7445, 5360-01-238-0496. Verify interchangeability with system specifications before substitution.
Key specifications for 4305002: Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF; Thread Series Designator: ANPT ALL ENDS; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 21 total characteristics are documented in the Federal Logistics Information System.