PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32123Seat,valve

Flowserve Inc · NSN 4820-01-505-4222 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-505-4222 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-505-4222. Primary manufacturer part number: 32123.
Features
  • Seat,valve — FSC 4820
  • Material Document and Classification: A182 F316 HF ASSN STD SINGLE MATERIAL RESPONSE SEAT
  • Style Designator: PLAIN FLANGED
  • Material: STEEL CORROSION RESISTING SEAT
  • Seating Surface Shape: ANGULAR
  • 4 verified cross-references
  • Primary manufacturer: Flowserve Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-505-4222, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-505-4222
Primary Part Number32123
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerFlowserve Inc
StatusACTIVE
Material Document and ClassificationA182 F316 HF ASSN STD SINGLE MATERIAL RESPONSE SEAT
Style DesignatorPLAIN FLANGED
MaterialSTEEL CORROSION RESISTING SEAT
Seating Surface ShapeANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-206-2071413375-1 INTERCHANGEABLE
Screw,machine
Raytheon Company Dba Raytheon
3455-00-242-6214 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
5120-00-359-6552T23 INTERCHANGEABLE
Tire Iron
Summit Tool Company
5930-00-493-130150066 INTERCHANGEABLE
Switch,push-Pull
Cole Hersee Company
5210-00-971-88275210-00-971-8827 INTERCHANGEABLE
Rule,machinist's
General Services Administration Federal Supply Service
5950-01-055-542340532 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
5305-01-122-851440532 INTERCHANGEABLE
Setscrew
Barnes Group Inc. Dba Barnes Distribution
4730-01-129-80831S-45F-100-2-1/2IN INTERCHANGEABLE
Strainer,sediment
Tate Andale, Llc
4820-01-149-3336N32123 INTERCHANGEABLE
Guide,seat Retaining
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-231-551515571NPC15 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
SWS-718-09 ITEM 8 Flowserve Inc (USA)
32123 PRIMARY Flowserve Inc (USA)
SWS-718-09 Flowserve Inc (USA)
40532 Flowserve Inc (USA)
Related Parts
5305-00-206-2071INTERCHANGEABLE
SCREW,MACHINE
413375-1
3455-00-242-6214INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
5120-00-359-6552INTERCHANGEABLE
TIRE IRON
T23
5930-00-493-1301INTERCHANGEABLE
SWITCH,PUSH-PULL
50066
5210-00-971-8827INTERCHANGEABLE
RULE,MACHINIST'S
5210-00-971-8827
5950-01-055-5423INTERCHANGEABLE
TRANSFORMER,POWER
40532
5305-01-122-8514INTERCHANGEABLE
SETSCREW
40532
4730-01-129-8083INTERCHANGEABLE
STRAINER,SEDIMENT
1S-45F-100-2-1/2IN
4820-01-149-3336INTERCHANGEABLE
GUIDE,SEAT RETAINING
N32123
4820-01-231-5515INTERCHANGEABLE
DISK,VALVE
15571NPC15
5340-01-344-6851INTERCHANGEABLE
BRACKET,MOUNTING
5120-01-399-8777INTERCHANGEABLE
WRENCH,OPEN END
J32123

Frequently Asked Questions

What is NSN 4820-01-505-4222?

NSN 4820-01-505-4222 is a Seat,valve, manufactured by Flowserve Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-505-4222?

NSN 4820-01-505-4222 has 4 cross-referenced part numbers: SWS-718-09 ITEM 8 (Flowserve Inc), 32123 (Flowserve Inc), SWS-718-09 (Flowserve Inc), 40532 (Flowserve Inc).

What NSN replaces 4820-01-505-4222?

There are 12 known substitutes for 4820-01-505-4222: 5305-00-206-2071, 3455-00-242-6214, 5120-00-359-6552 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 32123?

Key specifications for 32123: End Item Identification: SWING CHECK VALVE; Material Document and Classification: A182 F316 HF ASSN STD SINGLE MATERIAL RESPONSE SEAT; Style Designator: PLAIN FLANGED; Material: STEEL CORROSION RESISTING 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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