PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S-950Valve,exhaust Control

Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp · NSN 4820-01-265-7138 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-265-7138 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-265-7138. Primary manufacturer part number: S-950.
Features
  • Valve,exhaust Control — FSC 4820
  • Flow Control Device: DISKDISK
  • Bonnet Attachment Method: BOLTEDBOLTED
  • Flange Shape: ROUND WITH HOLES ALL ENDSROUND WITH HOLES ALL ENDS
  • Raised Face Nominal Diameter: 7.312 INCHES FIRST END7.312 INCHES FIRST END IN
  • Raised Face Nominal Height: 0.062 INCHES ALL ENDS0.062 INCHES ALL ENDS IN
  • Nominal Outside Diameter: 8.500 INCHES THIRD END8.500 INCHES THIRD END IN
  • Material: STEEL BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Body construction
General Description

The Valve,exhaust Control, cataloged under National Stock Number 4820-01-265-7138, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-265-7138
Primary Part NumberS-950
Item NameValve,exhaust Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPentair Valves & Controls Us Lp Div Flow Control Us Holding Corp
StatusACTIVE
Flow Control DeviceDISKDISK
Bonnet Attachment MethodBOLTEDBOLTED
Flange ShapeROUND WITH HOLES ALL ENDSROUND WITH HOLES ALL ENDS
Raised Face Nominal Diameter7.312 INCHES FIRST END7.312 INCHES FIRST END IN
Raised Face Nominal Height0.062 INCHES ALL ENDS0.062 INCHES ALL ENDS IN
Nominal Outside Diameter8.500 INCHES THIRD END8.500 INCHES THIRD END IN
MaterialSTEEL BODY
Raised Face Nominal Diameter5.500 INCHES THIRD END5.500 INCHES THIRD END IN
MaterialSTEEL FLOW CONTROL DEVICE
Connection TypeFLANGE ALL ENDSFLANGE ALL ENDS
Bolt Circle Nominal Diameter7.000 INCHES THIRD END7.000 INCHES THIRD END IN
Bolt Circle Nominal Diameter8.500 INCHES SECOND END8.500 INCHES SECOND END IN
Bolt Hole Quantity8 ALL ENDS8 ALL ENDS
Bolt Hole Nominal Diameter0.750 INCHES THIRD END0.750 INCHES THIRD END IN
MaterialSTEEL SEAT
Flange Face DesignRAISED STRAIGHT ALL ENDSRAISED STRAIGHT ALL ENDS
Valve Operation MethodMANUALMANUAL
Bolt Circle Nominal Diameter8.500 INCHES FIRST END8.500 INCHES FIRST END IN
Nominal Outside Diameter10.000 INCHES SECOND END10.000 INCHES SECOND END IN
Bolt Hole Nominal Diameter0.875 INCHES SECOND END0.875 INCHES SECOND END IN
Bolt Hole Nominal Diameter0.875 INCHES FIRST END0.875 INCHES FIRST END IN
Raised Face Nominal Diameter7.312 INCHES SECOND END7.312 INCHES SECOND END IN
Nominal Outside Diameter10.000 INCHES FIRST END10.000 INCHES FIRST END IN
Nominal Thickness0.937 INCHES ALL ENDS0.937 INCHES ALL ENDS IN
Bonnet TypeINSIDE SCREWINSIDE SCREW
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6515-00-194-9675309623 INTERCHANGEABLE
Syringe and Needle,hypodermic
Becton, Dickinson and Co Dba Becton Dickinson & Co
2805-00-356-1579 INTERCHANGEABLE
Valve,poppet,engine
4820-01-190-6044KMC-NM226-1 INTERCHANGEABLE
Stem,fluid Valve
Krobach Mfg. Corp. Dba Krobach Manufacturing Corp
Cross-Reference Index
Part NumberManufacturer
S-950 Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp (USA)
S-950-57 Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp (USA)
S-950 GROUP 4 Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp (USA)
Related Parts
6515-00-194-9675INTERCHANGEABLE
SYRINGE AND NEEDLE,HYPODERMIC
309623
2805-00-356-1579INTERCHANGEABLE
VALVE,POPPET,ENGINE
4820-01-190-6044INTERCHANGEABLE
STEM,FLUID VALVE
KMC-NM226-1

Frequently Asked Questions

What is NSN 4820-01-265-7138?

NSN 4820-01-265-7138 is a Valve,exhaust Control, manufactured by Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-265-7138?

NSN 4820-01-265-7138 has 3 cross-referenced part numbers: S-950 (Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp), S-950-57 (Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp), S-950 GROUP 4 (Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp).

What NSN replaces 4820-01-265-7138?

There are 3 known substitutes for 4820-01-265-7138: 6515-00-194-9675, 2805-00-356-1579, 4820-01-190-6044. Verify interchangeability with system specifications before substitution.

What are the specifications of S-950?

Key specifications for S-950: Flow Control Device: DISKDISK; Bonnet Attachment Method: BOLTEDBOLTED; Flange Shape: ROUND WITH HOLES ALL ENDSROUND WITH HOLES ALL ENDS; Raised Face Nominal Diameter: 7.312 INCHES FIRST END7.312 INCHES FIRST END IN. 25 total characteristics are documented in the Federal Logistics Information System.

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