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PartsTable / COMPONENT / 3770-41490 ITEM 6
3770-41490 ITEM 6 ✓ 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

SLEEVE,DIRECTIONAL CONTROL LINEA. Key specifications include material: STEEL, special_features: W/S LOS ANGELES CLASS SSN (688), end_item_identification: E/I ROTARY HYDRAULIC ACTUATOR, MODEL 3770A A, part_name_assigned_by_controlling_agency: CYLINDER SLEEVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-484-0085, 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
3770-41490 ITEM 6
NSN: 4810-01-484-0085
FSC: 4810
CAGE: 07270 — MOOG INC. DBA AMPAC-ISP CORP (USA)
SPECIFICATIONS
materialSTEEL
special_featuresW/S LOS ANGELES CLASS SSN (688)
end_item_identificationE/I ROTARY HYDRAULIC ACTUATOR, MODEL 3770A A
part_name_assigned_by_controlling_agencyCYLINDER SLEEVE
NSN4810-01-484-0085
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3770-41490 ITEM 6 · 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
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONE/I ROTARY HYDRAULIC ACTUATOR, MODEL 3770A A
SPECIAL FEATURESW/S LOS ANGELES CLASS SSN (688)
MATERIALSTEEL
PART NAME ASSIGNED BY CONTROLLING AGENCYCYLINDER SLEEVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
414-9-6Interchangeable
interchangeable cross-reference
interchangeable
C4980A9-35Interchangeable
interchangeable cross-reference
interchangeable
7602843Interchangeable
interchangeable cross-reference
interchangeable
22065BInterchangeable
interchangeable cross-reference
interchangeable
22065Interchangeable
interchangeable cross-reference
interchangeable
376MEH1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3770-41490 ITEM 6?
3770-41490 ITEM 6 is a SLEEVE,DIRECTIONAL CONTROL LINEA.
What parts can replace 3770-41490 ITEM 6?
There are 14 known substitutes for 3770-41490 ITEM 6: 414-9-6, C4980A9-35, 7602843 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3770-41490 ITEM 6?
3770-41490 ITEM 6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-484-0085. 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