PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Y305836305Valve,regulating,fluid Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-201-2340 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-201-2340 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-201-2340. Primary manufacturer part number: Y305836305.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Maximum Inlet Pressure Rating: ERR-060
  • End Connection Quantity: 2
  • Filter: NOT INCLUDED
  • Material Document and Classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
  • Material Document and Classification: QQ-N-286, CLASS B FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Material: NICKEL ALLOY K-500 STEM
  • Material Document and Classification: QQ-N-286, CLASS A FED SPEC SINGLE MATERIAL RESPONSE STEM
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy K-500 Stem construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-201-2340, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN4820-01-201-2340
Primary Part NumberY305836305
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Maximum Inlet Pressure RatingERR-060
End Connection Quantity2
FilterNOT INCLUDED
Material Document and ClassificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
Material Document and ClassificationQQ-N-286, CLASS B FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MaterialNICKEL ALLOY K-500 STEM
Material Document and ClassificationQQ-N-286, CLASS A FED SPEC SINGLE MATERIAL RESPONSE STEM
Body StyleSTRAIGHT THRU
MaterialNICKEL ALLOY 502 FLOW CONTROL DEVICE
Material Document and ClassificationASTM B164 ASSN STD SINGLE MATERIAL RESPONSE SEAT
Flow Control DeviceDISK
Valve Loading MethodSPRING
MaterialNICKEL ALLOY AND COPPER ALLOY SEAT
Second End Relationship with First EndIDENTICAL
First End Nominal Pipe Size Accommodated0.250 INCHES IN
First End Style DesignatorSTREAMLINED WITH ONE BRAZING RING
Regulation TypeAUTOMATIC SINGLE STAGE
First End Connection TypeUNTHREADED INTERNAL PIPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-00-027-3583 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-01-049-3490N5419353 INTERCHANGEABLE
Stem,fluid Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-240-853219881N PIECE 22 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
HWWLN-1/4IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
19881N HWWLN-1/4IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
19881N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
HWWLN1988IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Y305836305 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-00-027-3583INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-01-049-3490INTERCHANGEABLE
STEM,FLUID VALVE
N5419353
4820-01-240-8532INTERCHANGEABLE
CAP,VALVE
19881N PIECE 22

Frequently Asked Questions

What is NSN 4820-01-201-2340?

NSN 4820-01-201-2340 is a Valve,regulating,fluid Pressure, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-201-2340?

NSN 4820-01-201-2340 has 5 cross-referenced part numbers: HWWLN-1/4IN (Leslie Controls, Inc. Dba Leslie Controls Inc), 19881N HWWLN-1/4IN (Leslie Controls, Inc. Dba Leslie Controls Inc), 19881N (Leslie Controls, Inc. Dba Leslie Controls Inc), HWWLN1988IN (Leslie Controls, Inc. Dba Leslie Controls Inc), Y305836305 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-201-2340?

There are 3 known substitutes for 4820-01-201-2340: 4820-00-027-3583, 4820-01-049-3490, 4820-01-240-8532. Verify interchangeability with system specifications before substitution.

What are the specifications of Y305836305?

Key specifications for Y305836305: Maximum Inlet Pressure Rating: ERR-060; End Connection Quantity: 2; Filter: NOT INCLUDED; Material Document and Classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com