PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T636-6PC25Seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-389-4583 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-389-4583 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-389-4583. Primary manufacturer part number: T636-6PC25.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Seal Accommodation Type: RECESSED
  • Style Designator: THREADED FLANGED
  • Surface Treatment: ANODIZE OVERALL
  • Material: COPPER ALLOY OVERALL
  • Flange Diameter: 1.186 INCHES NOMINAL IN
  • 7 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-389-4583, 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 7 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-389-4583
Primary Part NumberT636-6PC25
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Seating Surface ShapeFLAT
Seal Accommodation TypeRECESSED
Style DesignatorTHREADED FLANGED
Surface TreatmentANODIZE OVERALL
MaterialCOPPER ALLOY OVERALL
Flange Diameter1.186 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5120-00-236-3692 INTERCHANGEABLE
Hammer,hand
3030-00-481-363415610 INTERCHANGEABLE
Belt,v
Dayco Corp Walterboro Plant
3110-00-555-5217 INTERCHANGEABLE
Bearing,ball,annular
5360-00-664-213013611 INTERCHANGEABLE
Spring,helical,extension
Viz Manufacturing Company
4730-00-740-150713611 INTERCHANGEABLE
Strainer Element,sediment
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5950-00-755-6630SM-D-502429 INTERCHANGEABLE
Transformer Assembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6510-00-926-91667362 INTERCHANGEABLE
Bandage,cast,impregnated
Bsn Medical Inc
6625-01-093-3410MT7411A INTERCHANGEABLE
Test Set,radio
Maury Microwave, Inc. Dba Maury Microwave
2530-01-436-459913611 INTERCHANGEABLE
Hub,wheel,vehicular
Funk Mfg Co Sub of Deere and Co
Cross-Reference Index
Part NumberManufacturer
T636-6PC25 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
T670PC25 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
T735FALT3PC3 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
T638-4PC25 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
T853PC25 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
13611 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
T636-4PC25 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5120-00-236-3692INTERCHANGEABLE
HAMMER,HAND
3030-00-481-3634INTERCHANGEABLE
BELT,V
15610
3110-00-555-5217INTERCHANGEABLE
BEARING,BALL,ANNULAR
5360-00-664-2130INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
13611
4730-00-740-1507INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
13611
5950-00-755-6630INTERCHANGEABLE
TRANSFORMER ASSEMBLY
SM-D-502429
6510-00-926-9166INTERCHANGEABLE
BANDAGE,CAST,IMPREGNATED
7362
6625-01-093-3410INTERCHANGEABLE
TEST SET,RADIO
MT7411A
2530-01-436-4599INTERCHANGEABLE
HUB,WHEEL,VEHICULAR
13611

Frequently Asked Questions

What is NSN 4820-00-389-4583?

NSN 4820-00-389-4583 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 4820-00-389-4583?

NSN 4820-00-389-4583 has 7 cross-referenced part numbers: T636-6PC25 (Leslie Controls, Inc. Dba Leslie Controls Inc), T670PC25 (Leslie Controls, Inc. Dba Leslie Controls Inc), T735FALT3PC3 (Leslie Controls, Inc. Dba Leslie Controls Inc), T638-4PC25 (Leslie Controls, Inc. Dba Leslie Controls Inc), T853PC25 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 2 more.

What NSN replaces 4820-00-389-4583?

There are 9 known substitutes for 4820-00-389-4583: 5120-00-236-3692, 3030-00-481-3634, 3110-00-555-5217 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T636-6PC25?

Key specifications for T636-6PC25: Seating Surface Shape: FLAT; Seal Accommodation Type: RECESSED; Style Designator: THREADED FLANGED; Surface Treatment: ANODIZE OVERALL. 6 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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