PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NC403766Seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-392-8690 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-392-8690 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-392-8690. Primary manufacturer part number: NC403766.
Features
  • Seat,valve — FSC 4820
  • 5 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 4820-01-392-8690, 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 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-392-8690
Primary Part NumberNC403766
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 2
4030-00-874-442731118 INTERCHANGEABLE
Hook Logging Line
Hyster-Yale Group, Inc.
5970-01-028-4060403766 INTERCHANGEABLE
Insulator,washer
Telemechanics Inc
Cross-Reference Index
Part NumberManufacturer
NC403766 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
31428N ITEM 30 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
403766 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
2498-00-300 6IN,TY I,ITEM 30 Circor Intl Inc (USA)
403766 Circor Intl Inc (USA)
Related Parts
4030-00-874-4427INTERCHANGEABLE
HOOK LOGGING LINE
31118
5970-01-028-4060INTERCHANGEABLE
INSULATOR,WASHER
403766

Frequently Asked Questions

What is NSN 4820-01-392-8690?

NSN 4820-01-392-8690 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 4820-01-392-8690?

NSN 4820-01-392-8690 has 5 cross-referenced part numbers: NC403766 (Leslie Controls, Inc. Dba Leslie Controls Inc), 31428N ITEM 30 (Leslie Controls, Inc. Dba Leslie Controls Inc), 403766 (Leslie Controls, Inc. Dba Leslie Controls Inc), 2498-00-300 6IN,TY I,ITEM 30 (Circor Intl Inc), 403766 (Circor Intl Inc).

What NSN replaces 4820-01-392-8690?

There are 2 known substitutes for 4820-01-392-8690: 4030-00-874-4427, 5970-01-028-4060. Verify interchangeability with system specifications before substitution.

What are the specifications of NC403766?

Key specifications for NC403766: End Item Identification: 6.0IN. BUTTERFLY VALVE IAW MIL-V-24624,TY I,STYLE A IN. 1 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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