PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4511-2Valve,seat

Avox Systems Inc Dba Avox Systems Inc · NSN 4820-00-322-2393 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-322-2393 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-322-2393. Primary manufacturer part number: 4511-2.
Features
  • Valve,seat — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Avox Systems Inc Dba Avox Systems Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,seat, cataloged under National Stock Number 4820-00-322-2393, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. This item has 1 commercial cross-reference 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.

Catalog Facts
Item NameValve,seat
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersAvox Systems Inc Dba Avox Systems Inc (CAGE 53655)
Technical Specifications
ParameterValue
NSN4820-00-322-2393
Primary Part Number4511-2
Item NameValve,seat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-034-637245112A INTERCHANGEABLE
Board Assembly
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
3455-00-232-903258-10119 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5120-00-289-90355120-00-289-9035 INTERCHANGEABLE
Shovel,hand
General Services Administration Federal Supply Service
5930-00-501-485945-112 INTERCHANGEABLE
Switch,toggle
Raytheon Company Dba Raytheon Co
5331-00-599-0950 INTERCHANGEABLE
O-Ring
5955-00-789-811445112 INTERCHANGEABLE
Oscillator,noncrystal Controlled
L3harris Technologies, Inc. Div Space and Airborne Systems
4820-00-827-3266 INTERCHANGEABLE
Valve,gate
4820-01-011-8263 INTERCHANGEABLE
Seat,valve
6515-01-377-3738 INTERCHANGEABLE
Razor,surgical Preparation
5120-01-431-2717 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
4511-2 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
6625-00-034-6372INTERCHANGEABLE
BOARD ASSEMBLY
45112A
3455-00-232-9032INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10119
5120-00-289-9035INTERCHANGEABLE
SHOVEL,HAND
5120-00-289-9035
5930-00-501-4859INTERCHANGEABLE
SWITCH,TOGGLE
45-112
5331-00-599-0950INTERCHANGEABLE
O-RING
5955-00-789-8114INTERCHANGEABLE
OSCILLATOR,NONCRYSTAL CONTROLLED
45112
4820-00-827-3266INTERCHANGEABLE
VALVE,GATE
4820-01-011-8263INTERCHANGEABLE
SEAT,VALVE
6515-01-377-3738INTERCHANGEABLE
RAZOR,SURGICAL PREPARATION
5120-01-431-2717INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6230-01-584-1831INTERCHANGEABLE
SEARCHLIGHT
45112
4730-01-645-3302INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
451-1/2

Frequently Asked Questions

What is NSN 4820-00-322-2393?

NSN 4820-00-322-2393 is a Valve,seat, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-322-2393?

NSN 4820-00-322-2393 has 1 cross-referenced part number: 4511-2 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 4820-00-322-2393?

There are 12 known substitutes for 4820-00-322-2393: 6625-00-034-6372, 3455-00-232-9032, 5120-00-289-9035 and 9 more. Verify interchangeability with system specifications before substitution.

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