PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N40745Retainer,seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-199-6375 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-199-6375 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-199-6375. Primary manufacturer part number: N40745.
Features
  • Retainer,seat,valve — FSC 4820
  • Inside Diameter: 2.125 INCHES NOMINAL IN
  • Valve Design Control Activity: 35795
  • Valve Model Number for Which Designed: CLASS DDONSX
  • Valve Size for Which Designed: 3.000 INCHES IN
  • Material: STEEL CORROSION RESISTING
  • Outside Diameter: 2.873 INCHES NOMINAL IN
  • 5 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Retainer,seat,valve, cataloged under National Stock Number 4820-01-199-6375, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-199-6375
Primary Part NumberN40745
Item NameRetainer,seat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Inside Diameter2.125 INCHES NOMINAL IN
Valve Design Control Activity35795
Valve Model Number for Which DesignedCLASS DDONSX
Valve Size for Which Designed3.000 INCHES IN
MaterialSTEEL CORROSION RESISTING
Outside Diameter2.873 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5999-00-038-155440745 INTERCHANGEABLE
Cap,electrical
L3harris Technologies, Inc Div Space & Airborne Systems
4720-00-585-38804074-5 INTERCHANGEABLE
Hose,air Duct
Flexaust Inc
5945-00-846-5334115-5-0B INTERCHANGEABLE
Relay,electromagnetic
Essex Products Group, Inc. Dba Industrial Timer Company
4820-01-203-553353454-00-58 INTERCHANGEABLE
Stem,fluid Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
5950-01-300-901440745 INTERCHANGEABLE
Coil,radio Frequency
Vanguard Electronics, Llc
4820-01-377-3941N38922 INTERCHANGEABLE
Indicator,valve Opening
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-466-6345 INTERCHANGEABLE
Stem,fluid Valve
4820-01-468-3676DDONSX3IN900PSI INTERCHANGEABLE
Valve,globe-Check
Leslie Controls, Inc. Dba Leslie Controls Inc
4810-01-472-993422948N PC 1 GROUP 3 SIZE 135R INTERCHANGEABLE
Actuator,hydraulic-Pneumatic,lin
Leslie Controls, Inc. Dba Leslie Controls Inc
5935-01-645-7968 INTERCHANGEABLE
HDMI HDMI Fml Adapt
Cross-Reference Index
Part NumberManufacturer
40745 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
22948N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
22948N PIECE 18 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
40745 Lineta Engineering Und Handelsgesell-Schaft Mbh (DEU)
N40745 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5999-00-038-1554INTERCHANGEABLE
CAP,ELECTRICAL
40745
4720-00-585-3880INTERCHANGEABLE
HOSE,AIR DUCT
4074-5
5945-00-846-5334INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
115-5-0B
4820-01-203-5533INTERCHANGEABLE
STEM,FLUID VALVE
53454-00-58
5950-01-300-9014INTERCHANGEABLE
COIL,RADIO FREQUENCY
40745
4820-01-377-3941INTERCHANGEABLE
INDICATOR,VALVE OPENING
N38922
4820-01-466-6345INTERCHANGEABLE
STEM,FLUID VALVE
4820-01-468-3676INTERCHANGEABLE
VALVE,GLOBE-CHECK
DDONSX3IN900PSI
4810-01-472-9934INTERCHANGEABLE
ACTUATOR,HYDRAULIC-PNEUMATIC,LIN
22948N PC 1 GROUP 3 SIZE 135R
5935-01-645-7968INTERCHANGEABLE
HDMI HDMI FML ADAPT

Frequently Asked Questions

What is NSN 4820-01-199-6375?

NSN 4820-01-199-6375 is a Retainer,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 4820-01-199-6375?

NSN 4820-01-199-6375 has 5 cross-referenced part numbers: 40745 (Leslie Controls, Inc. Dba Leslie Controls Inc), 22948N (Leslie Controls, Inc. Dba Leslie Controls Inc), 22948N PIECE 18 (Leslie Controls, Inc. Dba Leslie Controls Inc), 40745 (Lineta Engineering Und Handelsgesell-Schaft Mbh), N40745 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-199-6375?

There are 10 known substitutes for 4820-01-199-6375: 5999-00-038-1554, 4720-00-585-3880, 5945-00-846-5334 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N40745?

Key specifications for N40745: Inside Diameter: 2.125 INCHES NOMINAL IN; Valve Design Control Activity: 35795; Valve Model Number for Which Designed: CLASS DDONSX; Valve Size for Which Designed: 3.000 INCHES IN. 7 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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