PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N533750058Seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-287-9340 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-287-9340 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-287-9340. Primary manufacturer part number: N533750058.
Features
  • Seat,valve — FSC 4820
  • Style Designator: PLAIN FLANGED
  • Material: STEEL CORROSION RESISTING OVERALL
  • Seating Surface Shape: O-RING
  • 3 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 Corrosion Resisting Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-287-9340, 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 3 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-287-9340
Primary Part NumberN533750058
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Style DesignatorPLAIN FLANGED
MaterialSTEEL CORROSION RESISTING OVERALL
Seating Surface ShapeO-RING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
1620-00-020-26505337-5 INTERCHANGEABLE
Cover,spring
Goodrich Aerospace Canada Ltd
3110-00-100-059853375 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5905-00-283-648153375 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
L3harris Technologies, Inc Div Space & Airborne Systems
6680-01-126-724753375 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
2520-01-242-483553375 INTERCHANGEABLE
Propeller Shaft,vehicular
Allianz Sweeper Company
3950-01-604-591953375 INTERCHANGEABLE
Tensioner Pulley Assembly
DP Manufacturing Inc.
4820-01-619-356053375 INTERCHANGEABLE
Parts Kit,sea Wate
Westerbeke Corporation
Cross-Reference Index
Part NumberManufacturer
533750058 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
53375 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N533750058 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
1620-00-020-2650INTERCHANGEABLE
COVER,SPRING
5337-5
3110-00-100-0598INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
53375
5905-00-283-6481INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
53375
6680-01-126-7247INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
53375
2520-01-242-4835INTERCHANGEABLE
PROPELLER SHAFT,VEHICULAR
53375
3950-01-604-5919INTERCHANGEABLE
TENSIONER PULLEY ASSEMBLY
53375
4820-01-619-3560INTERCHANGEABLE
PARTS KIT,SEA WATE
53375

Frequently Asked Questions

What is NSN 4820-01-287-9340?

NSN 4820-01-287-9340 is a Seat,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 4820-01-287-9340?

NSN 4820-01-287-9340 has 3 cross-referenced part numbers: 533750058 (Leslie Controls, Inc. Dba Leslie Controls Inc), 53375 (Leslie Controls, Inc. Dba Leslie Controls Inc), N533750058 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-287-9340?

There are 7 known substitutes for 4820-01-287-9340: 1620-00-020-2650, 3110-00-100-0598, 5905-00-283-6481 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N533750058?

Key specifications for N533750058: Style Designator: PLAIN FLANGED; Material: STEEL CORROSION RESISTING OVERALL; Seating Surface Shape: O-RING. 3 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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