PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5643803Cap,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-149-3460 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-149-3460 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-149-3460. Primary manufacturer part number: 5643803.
Features
  • Cap,valve — FSC 4820
  • Attachment Method: BOLTS
  • Material: STEEL
  • Valve Type for Which Designed: FLUID PRESSURE REGULATING
  • Valve Size for Which Designed: 0.750 INCHES IN
  • Valve Model Number for Which Designed: PLNS3A
  • 6 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Cap,valve, cataloged under National Stock Number 4820-01-149-3460, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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
NSN4820-01-149-3460
Primary Part Number5643803
Item NameCap,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Attachment MethodBOLTS
MaterialSTEEL
Valve Type for Which DesignedFLUID PRESSURE REGULATING
Valve Size for Which Designed0.750 INCHES IN
Valve Model Number for Which DesignedPLNS3A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-01-152-043223185 INTERCHANGEABLE
Diaphragm,actuator Valve,special
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-193-347114087 INTERCHANGEABLE
Crosshead,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-227-2056N5643803 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
13426N PIECE 35 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
13426N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
5643803 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
56438-03-85 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
40839R Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
56438-03-25 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-01-152-0432INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
23185
4820-01-193-3471INTERCHANGEABLE
CROSSHEAD,VALVE
14087
4820-01-227-2056INTERCHANGEABLE
CAP,VALVE
N5643803

Frequently Asked Questions

What is NSN 4820-01-149-3460?

NSN 4820-01-149-3460 is a Cap,valve, 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 4820-01-149-3460?

NSN 4820-01-149-3460 has 6 cross-referenced part numbers: 13426N PIECE 35 (Leslie Controls, Inc. Dba Leslie Controls Inc), 13426N (Leslie Controls, Inc. Dba Leslie Controls Inc), 5643803 (Leslie Controls, Inc. Dba Leslie Controls Inc), 56438-03-85 (Leslie Controls, Inc. Dba Leslie Controls Inc), 40839R (Leslie Controls, Inc. Dba Leslie Controls Inc) and 1 more.

What NSN replaces 4820-01-149-3460?

There are 3 known substitutes for 4820-01-149-3460: 4820-01-152-0432, 4820-01-193-3471, 4820-01-227-2056. Verify interchangeability with system specifications before substitution.

What are the specifications of 5643803?

Key specifications for 5643803: Attachment Method: BOLTS; Material: STEEL; Valve Type for Which Designed: FLUID PRESSURE REGULATING; Valve Size for Which Designed: 0.750 INCHES IN. 5 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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