The Valve,check, cataloged under National Stock Number 4820-00-064-4396, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company. Government technical data includes 14 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 | 4820-00-064-4396 |
| Primary Part Number | 492304 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company |
| Status | ACTIVE |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Thread Class | 3A ALL ENDS A |
| Media for Which Designed | REFRIGERANT 12 SECOND RESPONSE |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER, FRESH THIRD RESPONSE |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES ALL ENDS IN |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Media for Which Designed | AIR FIRST RESPONSE |
| Disk Loading Method | SPRING |
| Nominal Thread Size | 0.875 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 492304 | Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company (USA) |
| MS28050-4 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-DTL-6129 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 4820-00-064-4396 is a Valve,check, manufactured by Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-064-4396 has 3 cross-referenced part numbers: 492304 (Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company), MS28050-4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-6129 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 2 known substitutes for 4820-00-064-4396: 4820-00-940-7941, 4820-01-165-1416. Verify interchangeability with system specifications before substitution.
Key specifications for 492304: Valve Operation Method: AUTOMATIC; Flow Control Device: DISK; Thread Direction: RIGHT-HAND ALL ENDS; Thread Class: 3A ALL ENDS A. 14 total characteristics are documented in the Federal Logistics Information System.