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704443 ✓ 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

CYLINDER ASSEMBLY,HYDRAULIC BRAK. Key specifications include bore_type: STRAIGHT, port_style: GASKET SEAL SINGLE PORT, bore_diameter: 1.750 INCHES NOMINAL IN, overall_height: 2.375 INCHES NOMINAL IN, compressed_length: 4.875 INCHES NOMINAL IN, features_provided: RUBBER BOOT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-303-1113, 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
704443
NSN: 4820-01-303-1113
FSC: 4820
CAGE: 1TH76 — ROLLS-ROYCE MARINE NORTH AMERICA INC (USA)
SPECIFICATIONS
bore_typeSTRAIGHT
port_styleGASKET SEAL SINGLE PORT
bore_diameter1.750 INCHES NOMINAL IN
overall_height2.375 INCHES NOMINAL IN
compressed_length4.875 INCHES NOMINAL IN
features_providedRUBBER BOOT
port_thread_class2B SINGLE PORT
mounting_provisionTHREADED MOUNTING HOLES
port_thread_diameter0.438 INCHES NOMINAL SINGLE PORT IN
body_outside_diameter2.219 INCHES NOMINAL IN
design_characteristicsDOUBLE ACTING SINGLE CYLINDER
bleeding_feature_quantity1
NSN4820-01-303-1113
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 704443 · 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 8
F8093Interchangeable
interchangeable cross-reference
interchangeable
4E3525Interchangeable
interchangeable cross-reference
interchangeable
200044Interchangeable
interchangeable cross-reference
interchangeable
18878Interchangeable
interchangeable cross-reference
interchangeable
6530NCM105154Interchangeable
interchangeable cross-reference
interchangeable
330521Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 704443?
704443 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace 704443?
There are 8 known substitutes for 704443: F8093, 4E3525, 200044 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 704443?
704443 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-303-1113. 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