PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D15-646P-648Valve,flow Control

Northrop Grumman Systems Corporation Div Marine Systems · NSN 4820-00-306-1438 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-306-1438 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-306-1438. Primary manufacturer part number: D15-646P-648.
Features
  • Valve,flow Control — FSC 4820
  • 50 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Div Marine Systems
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,flow Control, cataloged under National Stock Number 4820-00-306-1438, 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. This item has 50 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,flow Control
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersWestinghouse Electric Corp Sturtevant Div (CAGE 80231); Northrop Grumman Systems Corporation Div Marine Systems (CAGE 90099)
Technical Specifications
ParameterValue
NSN4820-00-306-1438
Primary Part NumberD15-646P-648
Item NameValve,flow Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5133-00-236-3403 INTERCHANGEABLE
Drill,twist
5930-01-172-508349752 INTERCHANGEABLE
Switch
Hamilton Mfg Co
6240-01-416-216949752 INTERCHANGEABLE
Lamp,processor,xray
Air Techniques, Inc.
6240-01-541-0327 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
D15-790PPC648 Westinghouse Electric Corp Sturtevant Div (USA)
D15-694MPC713 Westinghouse Electric Corp Sturtevant Div (USA)
D15-678SPC508 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-597BPC713 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-646TPC648 Westinghouse Electric Corp Sturtevant Div (USA)
D15-694XPC713 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-413XPC648 Westinghouse Electric Corp Sturtevant Div (USA)
D15-790PPC648 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-597PPC713 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-678BPC508 Westinghouse Electric Corp Sturtevant Div (USA)
D15-790UPC648 Westinghouse Electric Corp Sturtevant Div (USA)
D15-413CPC648 Westinghouse Electric Corp Sturtevant Div (USA)
D15-646TPC648 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-646CPC648 Westinghouse Electric Corp Sturtevant Div (USA)
D15-646P-648 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-413WPC648 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-694BPC713 Westinghouse Electric Corp Sturtevant Div (USA)
D15-790CPC648 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-597MPC713 Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-694QPC713 Westinghouse Electric Corp Sturtevant Div (USA)
Related Parts
5133-00-236-3403INTERCHANGEABLE
DRILL,TWIST
5930-01-172-5083INTERCHANGEABLE
SWITCH
49752
6240-01-416-2169INTERCHANGEABLE
LAMP,PROCESSOR,XRAY
49752
6240-01-541-0327INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 4820-00-306-1438?

NSN 4820-00-306-1438 is a Valve,flow Control, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-306-1438?

NSN 4820-00-306-1438 has 50 cross-referenced part numbers: D15-790PPC648 (Westinghouse Electric Corp Sturtevant Div), D15-694MPC713 (Westinghouse Electric Corp Sturtevant Div), D15-678SPC508 (Northrop Grumman Systems Corporation Div Marine Systems), D15-597BPC713 (Northrop Grumman Systems Corporation Div Marine Systems), D15-646TPC648 (Westinghouse Electric Corp Sturtevant Div) and 45 more.

What NSN replaces 4820-00-306-1438?

There are 4 known substitutes for 4820-00-306-1438: 5133-00-236-3403, 5930-01-172-5083, 6240-01-416-2169 and 1 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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