The Valve,vent, cataloged under National Stock Number 4820-01-423-2011, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Carver Pump Company. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-423-2011 |
| Primary Part Number | 576-4P-4-320 |
| Item Name | Valve,vent |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Carver Pump Company |
| Status | CANCELLED |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Thread Class | 2B ALL ENDS |
| Style Designator | SCREW-IN CARTRIDGE |
| Material | NICKEL ALLOY BODY |
| Nominal Thread Size | 0.437 INCHES ALL ENDS IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Type | THREADED CARTRIDGE ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 576-4P-4-320 PRIMARY | Carver Pump Company (USA) |
| N-999-6082-A-007 ITEM 7 | Carver Pump Company (USA) |
| N-999-6082-A-007 | Carver Pump Company (USA) |
| 999-1107-D-01 ITEM 576 | Carver Pump Company (USA) |
| 576-4P-4-320 | Nupro Co (USA) |
NSN 4820-01-423-2011 is a Valve,vent, manufactured by Carver Pump Company, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-423-2011 has 5 cross-referenced part numbers: 576-4P-4-320 (Carver Pump Company), N-999-6082-A-007 ITEM 7 (Carver Pump Company), N-999-6082-A-007 (Carver Pump Company), 999-1107-D-01 ITEM 576 (Carver Pump Company), 576-4P-4-320 (Nupro Co).
There are 3 known substitutes for 4820-01-423-2011: 4320-01-422-9254, 4730-01-422-9262, 4320-01-424-2227. Verify interchangeability with system specifications before substitution.
Key specifications for 576-4P-4-320: Connection Style: PLAIN (TUBE) ALL ENDS; Thread Class: 2B ALL ENDS; Style Designator: SCREW-IN CARTRIDGE; Material: NICKEL ALLOY BODY. 8 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-423-2011 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.