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PartsTable / COMPONENT / B-800-12777-503
B-800-12777-503 ✓ 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,ELECTROMECHANICAL,ROTAR. Key specifications include drive_type: DIRECT, body_length: 25.250 INCHES NOMINAL IN, body_diameter: 6.120 INCHES NOMINAL IN, rotation_in_deg: 360.0 NOMINAL, special_features: 1.000 IN. DIA DRIVE SHAFT IN, limit_switch_control: NOT INCLUDED.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-438-7568, 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
B-800-12777-503
NSN: 4810-01-438-7568
FSC: 4810
CAGE: 72166 — B.W. ELLIOTT MANUFACTURING CO., LLC (USA)
SPECIFICATIONS
drive_typeDIRECT
body_length25.250 INCHES NOMINAL IN
body_diameter6.120 INCHES NOMINAL IN
rotation_in_deg360.0 NOMINAL
special_features1.000 IN. DIA DRIVE SHAFT IN
limit_switch_controlNOT INCLUDED
angular_shaft_rotationUNLIMITED
end_item_identification170' PATROL COASTAL (PC-1) CLASS SHIPS
shaft_rotation_directionCLOCKWISE AND COUNTERCLOCKWISE
NSN4810-01-438-7568
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-800-12777-503 · 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
•
ROTATION IN DEG: 360.0 NOMINAL
•
BODY LENGTH: 25.250 INCHES NOMINAL IN
•
DRIVE TYPE: DIRECT
•
SHAFT ROTATION DIRECTION: CLOCKWISE AND COUNTERCLOCKWISE
•
ANGULAR SHAFT ROTATION: UNLIMITED
•
BODY DIAMETER: 6.120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURES1.000 IN. DIA DRIVE SHAFT IN
ROTATION IN DEG360.0 NOMINAL
BODY LENGTH25.250 INCHES NOMINAL IN
END ITEM IDENTIFICATION170' PATROL COASTAL (PC-1) CLASS SHIPS
DRIVE TYPEDIRECT
SHAFT ROTATION DIRECTIONCLOCKWISE AND COUNTERCLOCKWISE
ANGULAR SHAFT ROTATIONUNLIMITED
BODY DIAMETER6.120 INCHES NOMINAL IN
LIMIT SWITCH CONTROLNOT INCLUDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
120-8076Interchangeable
interchangeable cross-reference
interchangeable
127-77Interchangeable
interchangeable cross-reference
interchangeable
01506Interchangeable
interchangeable cross-reference
interchangeable
10913Interchangeable
interchangeable cross-reference
interchangeable
L10Interchangeable
interchangeable cross-reference
interchangeable
31-2X41-2CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-800-12777-503?
B-800-12777-503 is a ACTUATOR,ELECTROMECHANICAL,ROTAR.
What parts can replace B-800-12777-503?
There are 10 known substitutes for B-800-12777-503: 120-8076, 127-77, 01506 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-800-12777-503?
B-800-12777-503 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-438-7568. 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