PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PLBC10-1 ITEM 3Seat,valve

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 4820-01-475-2231 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-475-2231 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-475-2231. Primary manufacturer part number: PLBC10-1 ITEM 3.
Features
  • Seat,valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Circor Aerospace, Inc. Dba Circor Aerospace Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-475-2231, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersCircor Aerospace, Inc. Dba Circor Aerospace Inc (CAGE 91816)
Technical Specifications
ParameterValue
NSN4820-01-475-2231
Primary Part NumberPLBC10-1 ITEM 3
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-034-634745155 INTERCHANGEABLE
Board Assembly
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
5340-00-270-8532NAS-451-55 INTERCHANGEABLE
Button,plug
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3010-01-428-4427451-55/022200 INTERCHANGEABLE
Gear Assembly,speed Decreaser
Mc Keon Rolling Steel Door Co Inc
Cross-Reference Index
Part NumberManufacturer
45155 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
PLBC10-1 ITEM 3 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
6625-00-034-6347INTERCHANGEABLE
BOARD ASSEMBLY
45155
5340-00-270-8532INTERCHANGEABLE
BUTTON,PLUG
NAS-451-55
3010-01-428-4427INTERCHANGEABLE
GEAR ASSEMBLY,SPEED DECREASER
451-55/022200

Frequently Asked Questions

What is NSN 4820-01-475-2231?

NSN 4820-01-475-2231 is a Seat,valve, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-475-2231?

NSN 4820-01-475-2231 has 2 cross-referenced part numbers: 45155 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), PLBC10-1 ITEM 3 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 4820-01-475-2231?

There are 3 known substitutes for 4820-01-475-2231: 6625-00-034-6347, 5340-00-270-8532, 3010-01-428-4427. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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