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Technical Data Sheet
PartsTable / COMPONENT / R0021891-0106
R0021891-0106 ✓ 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

ACTUATOR,HYDRAULIC-PNEUMATIC,LIN. Key specifications include housing: PROVIDED, material: STEEL OVERALL, head_type: CORKSCREW, body_width: 2.625 INCHES NOMINAL IN, flow_angle: 90.0 DEGREES, leg_length: 2.750 INCHES NOMINAL ALL ENDS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-560-2273, 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
R0021891-0106
NSN: 4810-01-560-2273
FSC: 4810
CAGE: SZ177 — DENEL VEHICLE SYSTEMS (ZAF)
SPECIFICATIONS
housingPROVIDED
materialSTEEL OVERALL
head_typeCORKSCREW
body_width2.625 INCHES NOMINAL IN
flow_angle90.0 DEGREES
leg_length2.750 INCHES NOMINAL ALL ENDS IN
body_height0.430 INCHES MAXIMUM IN
body_length3.125 INCHES NOMINAL IN
handle_typeFIXED CRANK
head_quantity1
overall_length2.125 INCHES NOMINAL IN
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
NSN4810-01-560-2273
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: R0021891-0106 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
GGG-A-821 TY4CL2STAInterchangeable
interchangeable cross-reference
interchangeable
4146Interchangeable
interchangeable cross-reference
interchangeable
GGG-A-821Interchangeable
interchangeable cross-reference
interchangeable
4L320Interchangeable
interchangeable cross-reference
interchangeable
MS39242-4L320Interchangeable
interchangeable cross-reference
interchangeable
2322INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R0021891-0106?
R0021891-0106 is a ACTUATOR,HYDRAULIC-PNEUMATIC,LIN.
What parts can replace R0021891-0106?
There are 15 known substitutes for R0021891-0106: GGG-A-821 TY4CL2STA, 4146, GGG-A-821 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R0021891-0106?
R0021891-0106 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-560-2273. 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