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PartsTable / COMPONENT / 74186 PIECE 4
74186 PIECE 4 ✓ 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

PISTON,LINEAR ACTUATING CYLINDER. Key specifications include phase: THREE INPUT, material: STEEL BODY, unit_type: CUTTING, duty_cycle: CONTINUOUS, temp_rating: -54.0 OPERATING CELSIUS AND 71.0 OPERATING CELSIUS AND 40.0 AMBIENT CELSIUS, keyway_depth: 0.062 INCHES NOMINAL SINGLE END 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 4810-01-192-4549, 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
74186 PIECE 4
NSN: 4810-01-192-4549
FSC: 4810
CAGE: 09790 — EATON AEROSPACE LLC DBA STERER ENGINEERING DIV VALVE & ACTUATOR (USA)
SPECIFICATIONS
phaseTHREE INPUT
materialSTEEL BODY
unit_typeCUTTING
duty_cycleCONTINUOUS
temp_rating-54.0 OPERATING CELSIUS AND 71.0 OPERATING CELSIUS AND 40.0 AMBIENT CELSIUS
keyway_depth0.062 INCHES NOMINAL SINGLE END IN
keyway_width0.125 INCHES NOMINAL SINGLE END IN
power_rating0.333 HORSEPOWER OUTPUT
shank_length0.250 INCHES NOMINAL IN
thread_class2A A
winding_typeINDUCTION-SQUIRREL CAGE
keyway_length0.437 INCHES NOMINAL SINGLE END IN
NSN4810-01-192-4549
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 74186 PIECE 4 · 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 14
4530-133KInterchangeable
interchangeable cross-reference
interchangeable
3D829Interchangeable
interchangeable cross-reference
interchangeable
72060Interchangeable
interchangeable cross-reference
interchangeable
74226Interchangeable
interchangeable cross-reference
interchangeable
74898Interchangeable
interchangeable cross-reference
interchangeable
74186 ITEM NO.124Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74186 PIECE 4?
74186 PIECE 4 is a PISTON,LINEAR ACTUATING CYLINDER.
What parts can replace 74186 PIECE 4?
There are 14 known substitutes for 74186 PIECE 4: 4530-133K, 3D829, 72060 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 74186 PIECE 4?
74186 PIECE 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-192-4549. 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