Meritor S4721950330 Valve, Relay, Air Pressure

Meritor S4721950330 is a driveline component in Axles & Drivetrain, US catalog. Listed by US Government (DLA FLIS), October 2026.

Government data (US Government (DLA FLIS), October 2026 edition)

The U.S. government's Federal Logistics Information System (FLIS) records Meritor S4721950330 as the maker's own number under government stock item NSN 2530-01-497-7185. The name and every fact below are FLIS's, credited to US Government (DLA FLIS), October 2026 edition.

Specifications recorded for government stock item NSN 2530-01-497-7185, under which this manufacturer's reference number is listed. Confirm compatibility and specifications with the manufacturer before ordering.

Government item name

Valve, Relay, Air Pressure

Government stock item (NSN)

2530-01-497-7185

Manufacturer code (CAGE)

78500, MERITOR HEAVY VEHICLE SYSTEMS, LLC, TROY, MI, UNITED STATES

First end connection type

Threaded internal pipe

Second end relationship with first end

Not identical

Second end connection type

Threaded internal pipe

Third end relationship with preceding ends

Identical with second end

End connection quantity

3

First end thread series designator

NPTF

First end nominal thread size

0.750 in

Second end nominal thread size

0.375 in

Second end thread series designator

NPTF

Special features

1ST connection is for supply, 2ND connection is for delivery, and 3RD connection is for control; has unthreaded 4TH opening (port) for exhaust; operating pressure is 145 PSI; use with bayonet style cable connectors

Media for which designed

Air

Source: US Government (DLA FLIS), October 2026 edition, a public U.S. government data release. This is not an official DLA record and may contain errors. Verify fitment before ordering. Not affiliated with or endorsed by the Defense Logistics Agency or the Department of Defense. SearchForPart does not show a price here.

About this kind of part (general, written by SearchForPart)

A part of the drive shaft or axle drive. Vibration, noise or play point to wear. Check series and length.

When ordering, give the part number exactly as printed and its maker, and the make, model and year of the truck, trailer, reefer unit or machine (or the engine or unit serial number). SearchForPart shows fitment only as the source printed it: check it before you order.

Availability

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Source: US Government (DLA FLIS), October 2026 edition, a public U.S. government data release. This is not an official DLA record and may contain errors. Verify fitment before ordering. Not affiliated with or endorsed by the Defense Logistics Agency or the Department of Defense. SearchForPart does not show a price here.