The Piston,valve, cataloged under National Stock Number 4820-00-446-9749, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Northrop Grumman Systems Corporation Div Marine Systems. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 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: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-446-9749 |
| Primary Part Number | D15-684BPC407 |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation Div Marine Systems |
| Status | ACTIVE |
| Outside Diameter | 1.260 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| D15-684BPC407 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-560BPC407 | Westinghouse Electric Corp (USA) |
| D15-509XPC1132 | Westinghouse Electric Corp (USA) |
| D15-699WPC1132 | Westinghouse Electric Corp (USA) |
| D15-509UPC1132 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-698-0PC407 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-494QPC837 | Westinghouse Electric Corp (USA) |
| D15-439NPC29 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-698BPC407 | Westinghouse Electric Corp (USA) |
| D15-413XPC449 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-544APC407 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-405KPC405 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-678SPC329 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-597QPC546 | Westinghouse Electric Corp (USA) |
| D15-698NPC407 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-646CPC449 | Westinghouse Electric Corp (USA) |
| D15-494BPC837 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-439BPC29 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-439APC29 | Westinghouse Electric Corp (USA) |
| D15-495BPC407 | Westinghouse Electric Corp Sturtevant Div (USA) |
NSN 4820-00-446-9749 is a Piston,valve, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-446-9749 has 50 cross-referenced part numbers: D15-684BPC407 (Northrop Grumman Systems Corporation Div Marine Systems), D15-560BPC407 (Westinghouse Electric Corp), D15-509XPC1132 (Westinghouse Electric Corp), D15-699WPC1132 (Westinghouse Electric Corp), D15-509UPC1132 (Northrop Grumman Systems Corporation Div Marine Systems) and 45 more.
There is 1 known substitute for 4820-00-446-9749: 5998-01-299-5530. Verify interchangeability with system specifications before substitution.
Key specifications for D15-684BPC407: Overall Length: 3.000 INCHES NOMINAL IN; Outside Diameter: 1.260 INCHES NOMINAL IN; Material: COPPER ALLOY. 3 total characteristics are documented in the Federal Logistics Information System.