PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10953Seat,valve

Schneider Electric Systems Usa Inc · NSN 4820-00-036-0979 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-0979 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-0979. Primary manufacturer part number: 10953.
Features
  • Seat,valve — FSC 4820
  • Thread Quantity Per Inch: 16 SINGLE THREADED PORTION
  • Flange Seat to Disk End Height: 0.188 INCHES NOMINAL IN
  • Nominal Thread Size: 1.250 INCHES SINGLE THREADED PORTION IN
  • Body Inside Diameter: 0.750 INCHES NOMINAL IN
  • Flange Diameter: 1.438 INCHES NOMINAL IN
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Seating Surface Shape: FLAT
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-036-0979, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Schneider Electric Systems Usa Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-036-0979
Primary Part Number10953
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSchneider Electric Systems Usa Inc
StatusACTIVE
Thread Quantity Per Inch16 SINGLE THREADED PORTION
Flange Seat to Disk End Height0.188 INCHES NOMINAL IN
Nominal Thread Size1.250 INCHES SINGLE THREADED PORTION IN
Body Inside Diameter0.750 INCHES NOMINAL IN
Flange Diameter1.438 INCHES NOMINAL IN
Thread Class2A SINGLE THREADED PORTION A
Seating Surface ShapeFLAT
Thread Length0.188 INCHES NOMINAL SINGLE THREADED PORTION IN
MaterialCOPPER OVERALL
Under Flange Height0.250 INCHES NOMINAL IN
Style DesignatorTHREADED FLANGED
Thread Series DesignatorUN SINGLE THREADED PORTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5910-00-239-2041RE48A348ALTB INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Naval Ship Systems Command
4320-00-398-862910953 INTERCHANGEABLE
Ring,lantern
Rps-Fl, Inc. Dba Rps Inc
2530-01-052-601910953 INTERCHANGEABLE
Brake Shoe Set
Titan Distribution Inc Dba Titan Tire
6532-01-572-0684 INTERCHANGEABLE
Jacket,warm-Up,operating,surgica
6120-01-726-132510953 INTERCHANGEABLE
Power Supply
Extreme Networks, Inc
Cross-Reference Index
Part NumberManufacturer
10953 PRIMARY Schneider Electric Systems Usa Inc (USA)
Related Parts
5910-00-239-2041INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
RE48A348ALTB
4320-00-398-8629INTERCHANGEABLE
RING,LANTERN
10953
2530-01-052-6019INTERCHANGEABLE
BRAKE SHOE SET
10953
6532-01-572-0684INTERCHANGEABLE
JACKET,WARM-UP,OPERATING,SURGICA
6120-01-726-1325INTERCHANGEABLE
POWER SUPPLY
10953

Frequently Asked Questions

What is NSN 4820-00-036-0979?

NSN 4820-00-036-0979 is a Seat,valve, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-036-0979?

NSN 4820-00-036-0979 has 1 cross-referenced part number: 10953 (Schneider Electric Systems Usa Inc).

What NSN replaces 4820-00-036-0979?

There are 5 known substitutes for 4820-00-036-0979: 5910-00-239-2041, 4320-00-398-8629, 2530-01-052-6019 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10953?

Key specifications for 10953: Thread Quantity Per Inch: 16 SINGLE THREADED PORTION; Flange Seat to Disk End Height: 0.188 INCHES NOMINAL IN; Nominal Thread Size: 1.250 INCHES SINGLE THREADED PORTION IN; Body Inside Diameter: 0.750 INCHES NOMINAL IN. 12 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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