PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N30370Seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-308-7200 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-308-7200 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-308-7200. Primary manufacturer part number: N30370.
Features
  • Seat,valve — FSC 4820
  • Flange Diameter: 2.500 INCHES NOMINAL IN
  • Under Flange Height: 0.562 INCHES NOMINAL IN
  • Seating Surface Shape: FLAT
  • Material: COPPER ALLOY SEAT
  • Style Designator: THREADED FLANGED
  • Flange Seat to Disk End Height: 0.281 INCHES NOMINAL IN
  • Body Inside Diameter: 1.750 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-308-7200, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-308-7200
Primary Part NumberN30370
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Flange Diameter2.500 INCHES NOMINAL IN
Under Flange Height0.562 INCHES NOMINAL IN
Seating Surface ShapeFLAT
MaterialCOPPER ALLOY SEAT
Style DesignatorTHREADED FLANGED
Flange Seat to Disk End Height0.281 INCHES NOMINAL IN
Body Inside Diameter1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5342-00-084-407230370 INTERCHANGEABLE
Clamp,muffler
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
6685-01-411-0435 INTERCHANGEABLE
Indicator,pressure
5998-01-654-384230370-2 INTERCHANGEABLE
Circuit Card Assembly
Science Applications International Corporation
5345-01-678-51257100122788 INTERCHANGEABLE
Disk,abrasive
3m Company
Cross-Reference Index
Part NumberManufacturer
N30370 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
2389 IN PIECE 14 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
30370 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
4820PL1290426 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5342-00-084-4072INTERCHANGEABLE
CLAMP,MUFFLER
30370
6685-01-411-0435INTERCHANGEABLE
INDICATOR,PRESSURE
5998-01-654-3842INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
30370-2
5345-01-678-5125INTERCHANGEABLE
DISK,ABRASIVE
7100122788

Frequently Asked Questions

What is NSN 4820-01-308-7200?

NSN 4820-01-308-7200 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 4820-01-308-7200?

NSN 4820-01-308-7200 has 4 cross-referenced part numbers: N30370 (Leslie Controls, Inc. Dba Leslie Controls Inc), 2389 IN PIECE 14 (Leslie Controls, Inc. Dba Leslie Controls Inc), 30370 (Leslie Controls, Inc. Dba Leslie Controls Inc), 4820PL1290426 (Jednolity Indeks Materialowy - Uniform Material Index).

What NSN replaces 4820-01-308-7200?

There are 4 known substitutes for 4820-01-308-7200: 5342-00-084-4072, 6685-01-411-0435, 5998-01-654-3842 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N30370?

Key specifications for N30370: Flange Diameter: 2.500 INCHES NOMINAL IN; Under Flange Height: 0.562 INCHES NOMINAL IN; Seating Surface Shape: FLAT; Material: COPPER ALLOY SEAT. 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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