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Technical Data Sheet
PartsTable / COMPONENT / 773017
773017 ✓ 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 VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, mounting_position: HORIZONTAL OR VERTICAL, disk_loading_method: SPRING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-849-5340, 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
773017
NSN: 4820-00-849-5340
FSC: 4820
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
style_designatorSTRAIGHT THRU
mounting_positionHORIZONTAL OR VERTICAL
disk_loading_methodSPRING
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
nominal_outside_diameter_tube_accommodated0.375 INCHES ALL ENDS IN
NSN4820-00-849-5340
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 773017 · 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
•
FLOW CONTROL DEVICE: DISK
•
DISK LOADING METHOD: SPRING
•
CONNECTION STYLE: PLAIN (TUBE) ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
MATERIAL: ALUMINUM ALLOY BODY
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDISK
DISK LOADING METHODSPRING
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
MATERIALALUMINUM ALLOY BODY
MATERIALALUMINUM ALLOY SEAT
VALVE OPERATION METHODAUTOMATIC
MOUNTING POSITIONHORIZONTAL OR VERTICAL
STYLE DESIGNATORSTRAIGHT THRU
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
1045Z1939Interchangeable
interchangeable cross-reference
interchangeable
205175Interchangeable
interchangeable cross-reference
interchangeable
391-1801-063Interchangeable
interchangeable cross-reference
interchangeable
5205-175000Interchangeable
Same NIIN cross-reference
interchangeable
10043943-96Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 773017?
773017 is a VALVE,CHECK.
What parts can replace 773017?
There are 5 known substitutes for 773017: 1045Z1939, 205175, 391-1801-063 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 773017?
773017 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-849-5340. 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