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Technical Data Sheet
PartsTable / COMPONENT / 477770
477770 ✓ 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 GEAR ASSEMBLY,SPEED DECREASER is a the manufacturer industrial component. Key specifications include length: 600.000 INCHES NOMINAL IN, material: STEEL OVERALL, body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, body_width: 1.000 INCHES MAXIMUM IN, trade_size: 0.188, body_height: 2.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-5617, 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
477770
NSN: 4820-00-287-5617
FSC: 4820
CAGE: 23382 — FWD SEAGRAVE HOLDINGS LP (USA)
SPECIFICATIONS
length600.000 INCHES NOMINAL IN
materialSTEEL OVERALL
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
body_width1.000 INCHES MAXIMUM IN
trade_size0.188
body_height2.000 INCHES NOMINAL IN
body_length3.000 INCHES NOMINAL IN
power_rating50.0 WATTS AVERAGE AND 2.0 KILOWATTS PEAK
inclosure_typeHERMETICALLY SEALED
overall_height2.375 INCHES NOMINAL IN
overall_length1.906 INCHES NOMINAL IN
drive_end_shapeSQUARE SECOND END EXTERNAL
NSN4820-00-287-5617
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 477770 · 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 24
A37484-3Interchangeable
interchangeable cross-reference
interchangeable
37484-3Interchangeable
interchangeable cross-reference
interchangeable
765-3Interchangeable
interchangeable cross-reference
interchangeable
138C106H11Interchangeable
interchangeable cross-reference
interchangeable
D15-470JPC704Interchangeable
interchangeable cross-reference
interchangeable
D15-414WPC679Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 477770?
477770 is a GEAR ASSEMBLY,SPEED DECREASER.
What parts can replace 477770?
There are 24 known substitutes for 477770: A37484-3, 37484-3, 765-3 and 21 more. Substitute compatibility should be verified for your specific system.
Is 477770 still available?
477770 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026