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Technical Data Sheet
PartsTable / COMPONENT / 81F621841390200
81F621841390200 ✓ 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, seat_angle: 65.0 DEGREES NOMINAL, thread_class: 2A A, overall_height: 0.796 INCHES NOMINAL IN, shoulder_width: 0.250 INCHES NOMINAL IN, shoulder_height: 0.156 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-145-6752, 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
81F621841390200
NSN: 4820-01-145-6752
FSC: 4820
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
seat_angle65.0 DEGREES NOMINAL
thread_class2A A
overall_height0.796 INCHES NOMINAL IN
shoulder_width0.250 INCHES NOMINAL IN
shoulder_height0.156 INCHES NOMINAL IN
style_designatorPLUG
nominal_thread_size0.312 INCHES IN
thread_series_designatorUNF
NSN4820-01-145-6752
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 81F621841390200 · 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
•
MATERIAL: STEEL CORROSION RESISTING
•
SHOULDER WIDTH: 0.250 INCHES NOMINAL IN
•
SHOULDER HEIGHT: 0.156 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
SEAT ANGLE: 65.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: PLUG
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING
SHOULDER WIDTH0.250 INCHES NOMINAL IN
SHOULDER HEIGHT0.156 INCHES NOMINAL IN
OVERALL HEIGHT0.796 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD SIZE0.312 INCHES IN
SEAT ANGLE65.0 DEGREES NOMINAL
STYLE DESIGNATORPLUG
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
67408Interchangeable
interchangeable cross-reference
interchangeable
B-5-SIZE-1INInterchangeable
interchangeable cross-reference
interchangeable
28064Interchangeable
interchangeable cross-reference
interchangeable
61F280641750000Interchangeable
interchangeable cross-reference
interchangeable
62184Interchangeable
interchangeable cross-reference
interchangeable
67408 PC 8Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81F621841390200?
81F621841390200 is a DISK,VALVE.
What parts can replace 81F621841390200?
There are 8 known substitutes for 81F621841390200: 67408, B-5-SIZE-1IN, 28064 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81F621841390200?
81F621841390200 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-145-6752. 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