The Valve,check, cataloged under National Stock Number 4820-01-438-9402, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Carrier Corp. Government technical data includes 8 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-438-9402 |
| Primary Part Number | EC38BZ121 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Carrier Corp |
| Status | ACTIVE |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Connection Style | SOCKET (TUBE) ALL ENDS |
| Mounting Position | HORIZONTAL |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Material | COPPER ALLOY BODY |
| Media for Which Designed | REFRIGERANT 12 SINGLE RESPONSE |
| Style Designator | STRAIGHT THRU |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-438-9402 is a Valve,check, manufactured by Carrier Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-438-9402 has 2 cross-referenced part numbers: 120-3/8 (Henry Technologies, Inc.), EC38BZ121 (Carrier Corp).
There are 8 known substitutes for 4820-01-438-9402: 5330-00-179-4177, 5133-00-232-8161, 3990-00-429-2431 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for EC38BZ121: Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Valve Operation Method: AUTOMATIC; Connection Style: SOCKET (TUBE) ALL ENDS; Mounting Position: HORIZONTAL. 8 total characteristics are documented in the Federal Logistics Information System.