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Technical Data Sheet
PartsTable / COMPONENT / RM21EF
RM21EF ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The VALVE ASSEMBLY,MANIFOLD is a the manufacturer industrial component. Key specifications include connection_type: BRAZING, PIPE, valve_operation_method: AIR, nondefinitive_spec/std_data: A TYPE AND 2-1 ARRANGEMENT, operating_pressure_and_type: 3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS, nominal_pipe_size_accommodated: 0.375 INCHES AND 0.750 INCHES IN, maximum_operating_temp_and_media_for_which_designed: 140.0 FAHRENHEIT AIR DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-363-3949, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
RM21EF
NSN: 4820-01-363-3949
FSC: 4820
CAGE: 99657 — MAROTTA CONTROLS INC (USA)
SPECIFICATIONS
connection_typeBRAZING, PIPE
valve_operation_methodAIR
nondefinitive_spec/std_dataA TYPE AND 2-1 ARRANGEMENT
operating_pressure_and_type3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS
nominal_pipe_size_accommodated0.375 INCHES AND 0.750 INCHES IN
maximum_operating_temp_and_media_for_which_designed140.0 FAHRENHEIT AIR DEGF
NSN4820-01-363-3949
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: RM21EF · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION TYPE: BRAZING, PIPE
•
OPERATING PRESSURE AND TYPE: 3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 2-1 ARRANGEMENT
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 140.0 FAHRENHEIT AIR DEGF
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES AND 0.750 INCHES IN
•
VALVE OPERATION METHOD: AIR
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEBRAZING, PIPE
OPERATING PRESSURE AND TYPE3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS
NONDEFINITIVE SPEC/STD DATAA TYPE AND 2-1 ARRANGEMENT
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED140.0 FAHRENHEIT AIR DEGF
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES AND 0.750 INCHES IN
VALVE OPERATION METHODAIR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
MIL-V-24272Interchangeable
interchangeable cross-reference
interchangeable
1000-003Interchangeable
interchangeable cross-reference
interchangeable
MIL-V-24272 CONF 1-1 3000 PSIInterchangeable
interchangeable cross-reference
interchangeable
MIL-V-24272BCONF1-1/3000/125T185Interchangeable
interchangeable cross-reference
interchangeable
10507Interchangeable
interchangeable cross-reference
interchangeable
MIL-V-24272BCONF1-1/3000/125T150Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RM21EF?
RM21EF is a VALVE ASSEMBLY,MANIFOLD.
What parts can replace RM21EF?
There are 9 known substitutes for RM21EF: MIL-V-24272, 1000-003, MIL-V-24272 CONF 1-1 3000 PSI and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RM21EF?
RM21EF is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-363-3949. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026