PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32643Disk,valve

Flowserve Inc · NSN 4820-01-510-9629 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-510-9629 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-510-9629. Primary manufacturer part number: 32643.
Features
  • Disk,valve — FSC 4820
  • Material: STEEL
  • Pressure Rating: 800.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • 3 verified cross-references
  • Primary manufacturer: Flowserve Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-510-9629, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Flowserve Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references 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
NSN4820-01-510-9629
Primary Part Number32643
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerFlowserve Inc
StatusACTIVE
MaterialSTEEL
Pressure Rating800.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6115-00-643-4496 INTERCHANGEABLE
Generator Set,gasoline Engine
6520-01-389-93953264-3 INTERCHANGEABLE
Paper,articulating,dental
Denar Corp
5340-01-407-717232643 INTERCHANGEABLE
Clamp,loop
Barnes Group Inc. Dba Barnes Distribution
4820-01-510-971032810 INTERCHANGEABLE
Stem,fluid Valve
Flowserve Inc
4820-01-530-3510 INTERCHANGEABLE
Disk,valve
Cross-Reference Index
Part NumberManufacturer
32643 PRIMARY Flowserve Inc (USA)
40407A2 R 18 ITEM 6 Flowserve Inc (USA)
40407A2 R 18 Flowserve Inc (USA)
Related Parts
6115-00-643-4496INTERCHANGEABLE
GENERATOR SET,GASOLINE ENGINE
6520-01-389-9395INTERCHANGEABLE
PAPER,ARTICULATING,DENTAL
3264-3
5340-01-407-7172INTERCHANGEABLE
CLAMP,LOOP
32643
4820-01-510-9710INTERCHANGEABLE
STEM,FLUID VALVE
32810
4820-01-530-3510INTERCHANGEABLE
DISK,VALVE

Frequently Asked Questions

What is NSN 4820-01-510-9629?

NSN 4820-01-510-9629 is a Disk,valve, manufactured by Flowserve Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-510-9629?

NSN 4820-01-510-9629 has 3 cross-referenced part numbers: 32643 (Flowserve Inc), 40407A2 R 18 ITEM 6 (Flowserve Inc), 40407A2 R 18 (Flowserve Inc).

What NSN replaces 4820-01-510-9629?

There are 5 known substitutes for 4820-01-510-9629: 6115-00-643-4496, 6520-01-389-9395, 5340-01-407-7172 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 32643?

Key specifications for 32643: Special Features: 1 1/2 GATE VALVE, SOCKET WELD ENDS FORGED STEEL, OS&Y, BOLTED BONNET, 5 DEGREE RENEWABLE SEATS, BOLTED GLAND LOOSE SLOTTED GATE, CLASS 800. THE SERIES NUMBER IS SW12401-08. THE MATERIAL CLASSIFICATION FOR THIS GATE IS A182 F316.; End Item Identification: 1 1/2 GATE VALVE; Material: STEEL; Pressure Rating: 800.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS. 4 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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