NSN 4520-00-222-3476, 4520002223476
VALVE,RADIATOR,HEATING

Federal Supply Classification: FSC 4520 - Space and Water Heating Equipment
National Item Identification Number: NIIN 002223476
Codification Country: United States
Item Name Code: INC 04846
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 4520-00-222-3476

National Stock Number (NSN) 4520-00-222-3476, or NIIN 002223476, (valve,radiator,heating) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.

This NSN is assigned to Item Name Code (INC) 04846. [A VALVE SPECIFICALLY DESIGNED FOR INSTALLATION IN THE SUPPLY LINE OF A HEATING RADIATOR. IT HAS A FEMALE INLET AND A GROUND JOINT UNION NUT WITH A MALE IRON PIPE THREADED TAILPIECE OUTLET.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520002223476 does not contain precious metals.

This NSN is associated to Schedule B 8481809050: other taps, cocks, valves, etc., nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.

This information was last updated on Jul 01, 2025.

Technical Characteristics

STEM MATERIAL: (ABEP) BRASS OR BRONZE
FLOW CONTROL DEVICE MATERIAL: (ADQV) ANY ACCEPTABLE
BODY MATERIAL: (AAFZ) BRONZE, ASTM B61 AND BRONZE, ASTM B62
SECOND END RELATIONSHIP WITH FIRST END: (ACLR) NOT IDENTICAL
MEDIA FOR WHICH DESIGNED: (ACKL) STEAM
MAXIMUM OPERATING PRESSURE: (AAJJ) 100.0 POUNDS PER SQUARE INCH
SEAT MATERIAL: (ACSH) BRONZE, ASTM B61 AND BRONZE, ASTM B62
END CONNECTION QUANTITY: (ADQZ) 2
BODY STYLE: (AAQL) ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
FIRST END CONNECTION TYPE: (ACKM) THREADED INTERNAL PIPE
FIRST END STYLE DESIGNATOR: (ACKN) PLAIN
FIRST END NOMINAL PIPE SIZE ACCOMMODATED: (ACLG) 0.750 INCHES
FIRST END THREAD DIRECTION: (ACLL) RIGHT-HAND
FLOW CONTROL DEVICE: (ADQU) ANY ACCEPTABLE
MATERIAL: (MATT) COPPER ALLOY 922 AND COPPER ALLOY 836 BODY
MATERIAL: (MATT) COPPER ALLOY 922 AND COPPER ALLOY 836 SEAT
MATERIAL: (MATT) COPPER ALLOY STEM
MEDIA FOR WHICH DESIGNED: (MEDA) STEAM
OPERATING PRESSURE: (CQQF) 100.0 POUNDS PER SQUARE INCH MAXIMUM
SECOND END CONNECTION TYPE: (ACLS) THREADED EXTERNAL PIPE
SECOND END NOMINAL PIPE SIZE ACCOMMODATED: (ACMN) 0.750 INCHES
SECOND END RELATIONSHIP WITH FIRST END: (CQBB) NOT IDENTICAL
SECOND END STYLE DESIGNATOR: (ACLT) PLAIN
SECOND END THREAD DIRECTION: (ACMS) RIGHT-HAND
SPECIAL FEATURES: (FEAT) CID A-A-50456 PATTERN 2,STYLE A,SIZE 3/4 IN.
VALVE OPERATION METHOD: (AQLR) WHEEL
VALVE OPERATION METHOD: (ADQW) WHEEL