PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A33TT3-4Valve,ball

Portland Valve Llc · NSN 4820-01-145-6680 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-145-6680 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-145-6680. Primary manufacturer part number: A33TT3-4.
Features
  • Valve,ball — FSC 4820
  • 18 verified cross-references
  • Primary manufacturer: Portland Valve Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-145-6680, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Portland Valve Llc. This item has 18 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameValve,ball
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersHammond Valve Corp (CAGE 14448); Metso Automation Usa, Inc (CAGE 01029); Portland Valve Llc (CAGE 53154); Conbraco Industries Inc (CAGE 57661); Mission Systems Davenport Inc. (CAGE 99251)
Technical Specifications
ParameterValue
NSN4820-01-145-6680
Primary Part NumberA33TT3-4
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPortland Valve Llc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
4820-00-242-3183BA-300 INTERCHANGEABLE
Valve,ball
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
5998-01-039-5572791880-0001 INTERCHANGEABLE
Circuit Card Assembly
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4820-01-098-788176-107-01 INTERCHANGEABLE
Valve,ball
Aalberts Integrated Piping Systems Americas, Inc.
4820-01-161-4745MSS SP-110 1IN FIG 1A INTERCHANGEABLE
Valve,ball
Manufacturers Standardization Society of the Valve and Fittings Industry Inc
4820-01-186-598570-100-01 INTERCHANGEABLE
Valve,ball
Aalberts Integrated Piping Systems Americas, Inc.
5915-01-322-089904291 INTERCHANGEABLE
Filter,radio Frequency Interfere
Magnetika Inc
4820-01-346-1665 INTERCHANGEABLE
Valve,ball
4820-01-346-9673 INTERCHANGEABLE
Valve,ball
Cross-Reference Index
Part NumberManufacturer
FIG.NO.807 3/4 INCH IPS Hammond Valve Corp (USA)
3-4A22TT Metso Automation Usa, Inc (USA)
A33TT3-4 PRIMARY Portland Valve Llc (USA)
76104-01 Conbraco Industries Inc (USA)
086883 Mission Systems Davenport Inc. (USA)
12330124 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
76-104-01 PRIMARY Conbraco Industries Inc (USA)
WW-V-35B Federal Specifications Promulgated by General Services Administration Washington DC (USA)
73-104-01 Conbraco Industries Inc (USA)
V220-12 Merit Brass Co (USA)
5550524-1 Naval Sea Systems Command (USA)
76-104 Aalberts Integrated Piping Systems Americas, Inc. (USA)
086883-5 PRIMARY Mission Systems Davenport Inc. (USA)
A22TT3-4 Portland Valve Llc (USA)
5550524 Naval Sea Systems Command (USA)
A22TT 3-4IN Metso Automation Usa, Inc (USA)
BML61323 Bae Systems Land & Armaments L.p. (USA)
BML61323 Amz Alabama Inc. (USA)
Related Parts
4820-00-242-3183INTERCHANGEABLE
VALVE,BALL
BA-300
5998-01-039-5572INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
791880-0001
4820-01-098-7881INTERCHANGEABLE
VALVE,BALL
76-107-01
4820-01-161-4745INTERCHANGEABLE
VALVE,BALL
MSS SP-110 1IN FIG 1A
4820-01-186-5985INTERCHANGEABLE
VALVE,BALL
70-100-01
5915-01-322-0899INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
04291
4820-01-346-1665INTERCHANGEABLE
VALVE,BALL
4820-01-346-9673INTERCHANGEABLE
VALVE,BALL

Frequently Asked Questions

What is NSN 4820-01-145-6680?

NSN 4820-01-145-6680 is a Valve,ball, manufactured by Portland Valve Llc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-145-6680?

NSN 4820-01-145-6680 has 18 cross-referenced part numbers: FIG.NO.807 3/4 INCH IPS (Hammond Valve Corp), 3-4A22TT (Metso Automation Usa, Inc), A33TT3-4 (Portland Valve Llc), 76104-01 (Conbraco Industries Inc), 086883 (Mission Systems Davenport Inc.) and 13 more.

What NSN replaces 4820-01-145-6680?

There are 8 known substitutes for 4820-01-145-6680: 4820-00-242-3183, 5998-01-039-5572, 4820-01-098-7881 and 5 more. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-145-6680 still in active supply?

NSN 4820-01-145-6680 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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