The Valve,check, cataloged under National Stock Number 4820-01-165-1416, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-165-1416 |
| Primary Part Number | MS28050-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Media for Which Designed | REFRIGERANT 12 SECOND RESPONSE |
| Media for Which Designed | AIR FIRST RESPONSE |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Flow Control Device | DISK |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Thread Class | 3B ALL ENDS |
| Disk Loading Method | SPRING |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER, FRESH THIRD RESPONSE |
| Thread Series Designator | UNF ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS28050-1 | 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 4820-01-165-1416 is a Valve,check, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-165-1416 has 2 cross-referenced part numbers: MS28050-1 (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 4820-01-165-1416: 4820-00-064-4396, 4820-00-940-7941. Verify interchangeability with system specifications before substitution.
Key specifications for MS28050-1: Media for Which Designed: REFRIGERANT 12 SECOND RESPONSE; Media for Which Designed: AIR FIRST RESPONSE; Mounting Position: HORIZONTAL OR VERTICAL; Thread Direction: RIGHT-HAND ALL ENDS. 15 total characteristics are documented in the Federal Logistics Information System.