PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N537740058Seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-273-3334 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-273-3334 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-273-3334. Primary manufacturer part number: N537740058.
Features
  • Seat,valve — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-273-3334, 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. This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersLeslie Controls, Inc. Dba Leslie Controls Inc (CAGE 35795)
Technical Specifications
ParameterValue
NSN4820-01-273-3334
Primary Part NumberN537740058
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-273-3408N47451 INTERCHANGEABLE
Guide,valve Stem
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
28493N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N537740058 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
537740058 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
28493N PART 10 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-01-273-3408INTERCHANGEABLE
GUIDE,VALVE STEM
N47451

Frequently Asked Questions

What is NSN 4820-01-273-3334?

NSN 4820-01-273-3334 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 4820-01-273-3334?

NSN 4820-01-273-3334 has 4 cross-referenced part numbers: 28493N (Leslie Controls, Inc. Dba Leslie Controls Inc), N537740058 (Leslie Controls, Inc. Dba Leslie Controls Inc), 537740058 (Leslie Controls, Inc. Dba Leslie Controls Inc), 28493N PART 10 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-273-3334?

There is 1 known substitute for 4820-01-273-3334: 4820-01-273-3408. Verify interchangeability with system specifications before substitution.

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