The Valve,check, cataloged under National Stock Number 4820-00-366-5389, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-366-5389 |
| Primary Part Number | 2129X |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor |
| Status | ACTIVE |
| Material | STEEL OVERALL |
| Nominal Thread Size | 1.250 INCHES FIRST END IN |
| Furnished Items and Quantity | 1 GASKET |
| Thread Series Designator | UNF FIRST END |
| Thread Class | 2A FIRST END A |
| Flow Control Device | DISK |
| Connection Style | FLARED (TUBE) FIRST END |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED EXTERNAL BOSS FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-366-5389 is a Valve,check, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-366-5389 has 2 cross-referenced part numbers: 3578 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor), 2129X (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).
There are 11 known substitutes for 4820-00-366-5389: 4820-00-008-9941, 3110-00-100-0780, 2825-00-146-0070 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2129X: Material: STEEL OVERALL; Nominal Thread Size: 1.250 INCHES FIRST END IN; Furnished Items and Quantity: 1 GASKET; Thread Series Designator: UNF FIRST END. 9 total characteristics are documented in the Federal Logistics Information System.