The Valve,check, cataloged under National Stock Number 4820-00-951-0181, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-951-0181 |
| Primary Part Number | 249B16PP1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Circor Aerospace, Inc. Dba Circor Aerospace Inc |
| Status | CANCELLED |
| Flow Control Device | POPPET |
| Valve Operation Method | AUTOMATIC |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Disk Loading Method | SPRING |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Maximum Operating Temp | 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | STRAIGHT THRU |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Thread Series Designator | NPT ALL ENDS |
| Material | COPPER ALLOY OVERALL |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 515-0237 | Landoll Company, Llc (USA) |
| 64A92C885 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 259B16PP | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| 249B16PP1 PRIMARY | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
NSN 4820-00-951-0181 is a Valve,check, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-951-0181 has 4 cross-referenced part numbers: 515-0237 (Landoll Company, Llc), 64A92C885 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 259B16PP (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 249B16PP1 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).
There is 1 known substitute for 4820-00-951-0181: 5330-00-364-3088. Verify interchangeability with system specifications before substitution.
Key specifications for 249B16PP1: Flow Control Device: POPPET; Valve Operation Method: AUTOMATIC; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Disk Loading Method: SPRING. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-951-0181 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.