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Technical Data Sheet
PartsTable / COMPONENT / 71D-4
71D-4 ✓ 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 ABSORBER,OVERVOLTAGE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-202-6014, 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
71D-4
NSN: 4820-00-202-6014
FSC: 4820
CAGE: 91511 — AUTO-VALVE, INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
flow_control_devicePOPPET
nominal_thread_size0.437 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
thread_series_designatorUNF ALL ENDS
NSN4820-00-202-6014
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 71D-4 · 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
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
•
NOMINAL THREAD SIZE: 0.437 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
•
THREAD CLASS: 3A ALL ENDS A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND ALL ENDS
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNF ALL ENDS
NOMINAL THREAD SIZE0.437 INCHES ALL ENDS IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
VALVE OPERATION METHODAUTOMATIC
THREAD CLASS3A ALL ENDS A
NOMINAL THREAD SIZE0.437 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
49F9798-62Interchangeable
interchangeable cross-reference
interchangeable
775C-62NWInterchangeable
interchangeable cross-reference
interchangeable
8151-6AFInterchangeable
interchangeable cross-reference
interchangeable
MIL-V-25023Interchangeable
interchangeable cross-reference
interchangeable
8151-4AFInterchangeable
interchangeable cross-reference
interchangeable
8151-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 71D-4?
71D-4 is a ABSORBER,OVERVOLTAGE.
What parts can replace 71D-4?
There are 31 known substitutes for 71D-4: 49F9798-62, 775C-62NW, 8151-6AF and 28 more. Substitute compatibility should be verified for your specific system.
Is 71D-4 still available?
71D-4 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