PartsTable
Technical Data Sheet
A6855 ✓ 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 COCK,SHUTOFF,SCREW STEM is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thread_class: 2A SECOND END A, connection_type: THREADED EXTERNAL TUBE SECOND END, connection_style: PLAIN (PIPE) FIRST END, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-595-3192, 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
A6855
NSN: 4820-00-595-3192
FSC: 4820
CAGE: 79470 — DANA CORP WEATHERHEAD DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thread_class2A SECOND END A
connection_typeTHREADED EXTERNAL TUBE SECOND END
connection_stylePLAIN (PIPE) FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
flow_control_deviceDISK
nominal_thread_size0.500 INCHES SECOND END IN
seat_nominal_radius0.062 INCHES SECOND END IN
valve_operation_methodMANUAL
end_item_identificationGRUMMIN AEROSPACE A10 AIRCRAFT
NSN4820-00-595-3192
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: A6855 · 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
CONNECTION STYLE: COMPRESSION (TUBE) SECOND END
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES FIRST END IN
THREAD CLASS: 2A SECOND END A
THREAD DIRECTION: RIGHT-HAND SECOND END
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLECOMPRESSION (TUBE) SECOND END
END ITEM IDENTIFICATIONGRUMMIN AEROSPACE A10 AIRCRAFT
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END IN
THREAD CLASS2A SECOND END A
THREAD DIRECTIONRIGHT-HAND SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
MATERIALCOPPER ALLOY OVERALL
SEAT NOMINAL RADIUS0.062 INCHES SECOND END IN
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
6855Interchangeable
interchangeable cross-reference
interchangeable
L853NSH1PC711Interchangeable
interchangeable cross-reference
interchangeable
54101S58-101ALT5PC711Interchangeable
interchangeable cross-reference
interchangeable
8-532Interchangeable
interchangeable cross-reference
interchangeable
DA6855Interchangeable
interchangeable cross-reference
interchangeable
4U1027PCDA6855Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A6855?
A6855 is a COCK,SHUTOFF,SCREW STEM.
What parts can replace A6855?
There are 8 known substitutes for A6855: 6855, L853NSH1PC711, 54101S58-101ALT5PC711 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A6855?
A6855 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-595-3192. This indicates validated use in U.S. government and defense supply chains.
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