PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LNS5 1-2INL1Valve,regulating,fluid Pressure

Naval Inventory Control Point Mechanicsburg · NSN 4820-00-862-4691 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-862-4691 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-862-4691. Primary manufacturer part number: LNS5 1-2INL1.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Flow Control Device: DIAPHRAGM
  • Material: COBALT ALLOY SEAT
  • Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSFOR LEVEL 1 ITEMS
  • Filter: NOT INCLUDED
  • Material: STEEL CORROSION RESISTING STEM
  • Body Style: STRAIGHT THRU
  • First End Flange Outside Diameter: 3.750 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Cobalt Alloy Seat construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-862-4691, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-862-4691
Primary Part NumberLNS5 1-2INL1
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Flow Control DeviceDIAPHRAGM
MaterialCOBALT ALLOY SEAT
Reference Number Differentiating CharacteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSFOR LEVEL 1 ITEMS
FilterNOT INCLUDED
MaterialSTEEL CORROSION RESISTING STEM
Body StyleSTRAIGHT THRU
First End Flange Outside Diameter3.750 INCHES NOMINAL IN
Second End Relationship with First EndIDENTICAL
First End Bolt Circle Diameter3.250 INCHES NOMINAL IN
First End Raised Face Height0.250 INCHES NOMINAL IN
Maximum Inlet Pressure RatingERR-060
Face to Face Distance8.500 INCHES NOMINAL IN
First End Bolt Hole Quantity4
First End Style DesignatorRAISED
Temp Rating750.0 FAHRENHEIT NOMINAL DEGF
Renewable Seat Ring TypeWELDED
Remote Actuation MethodDIAPHRAGM
Valve Stem DesignSINGLE SEAT
Regulation TypeAUTOMATIC SINGLE STAGE
First End Flange Shape StyleROUND W/ BOLT HOLES
First End Raised Face Diameter1.375 INCHES NOMINAL IN
Valve Loading MethodSPRING
Media for Which DesignedSTEAM
Outlet Pressure Range100.0 TO 450.0 CAMERA MOUNT
First End Bolt Hole Diameter0.750 INCHES NOMINAL IN
Criticality Code JustificationZZZY
First End Flange Thickness0.562 INCHES NOMINAL IN
End Connection Quantity2
First End Connection TypeRAISED FACE FLANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-046-4617 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4310-00-306-1319N11122 INTERCHANGEABLE
Cylinder Sleeve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-00-433-5992 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-00-435-7991Y303700610 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-00-573-7612 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-00-873-8948Y303700910 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-00-935-5359 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-00-943-4036 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-01-086-8455Y303701121 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-103-329612397N, LNS5, 50 TO 150PSI INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
LNS5 1-2INL1 Naval Inventory Control Point Mechanicsburg (USA)
LNS5 1-2IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
17390NEVD21956N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
17390N, CLASS LNS-5L1,1/2-INL1 Naval Inventory Control Point Mechanicsburg (USA)
17390N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
17390NL1 Naval Inventory Control Point Mechanicsburg (USA)
LNS-5 1/2INL1 Naval Inventory Control Point Mechanicsburg (USA)
LNS-5 1/2IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
17390N, CLASS LNS-5L1,1/2-IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
17390NEVD21956NL1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
4820-00-046-4617INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4310-00-306-1319INTERCHANGEABLE
CYLINDER SLEEVE
N11122
4820-00-433-5992INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-00-435-7991INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
Y303700610
4820-00-573-7612INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-00-873-8948INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
Y303700910
4820-00-935-5359INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-00-943-4036INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-01-086-8455INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
Y303701121
4820-01-103-3296INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
12397N, LNS5, 50 TO 150PSI
4820-01-111-0784INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
Y303700611
4820-01-128-2297INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
Y303700711

Frequently Asked Questions

What is NSN 4820-00-862-4691?

NSN 4820-00-862-4691 is a Valve,regulating,fluid Pressure, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-862-4691?

NSN 4820-00-862-4691 has 10 cross-referenced part numbers: LNS5 1-2INL1 (Naval Inventory Control Point Mechanicsburg), LNS5 1-2IN (Leslie Controls, Inc. Dba Leslie Controls Inc), 17390NEVD21956N (Leslie Controls, Inc. Dba Leslie Controls Inc), 17390N, CLASS LNS-5L1,1/2-INL1 (Naval Inventory Control Point Mechanicsburg), 17390N (Leslie Controls, Inc. Dba Leslie Controls Inc) and 5 more.

What NSN replaces 4820-00-862-4691?

There are 12 known substitutes for 4820-00-862-4691: 4820-00-046-4617, 4310-00-306-1319, 4820-00-433-5992 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LNS5 1-2INL1?

Key specifications for LNS5 1-2INL1: Flow Control Device: DIAPHRAGM; Material: COBALT ALLOY SEAT; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSFOR LEVEL 1 ITEMS; Filter: NOT INCLUDED. 29 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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