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A7851PC19 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A7851PC19: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 1.000 INCHES NOMINAL IN, style_designator: THREADED FLANGED, seat_angle_in_deg: 43.000 NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-564-3320, 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
A7851PC19
NSN: 4820-00-564-3320
FSC: 4820 — Valves, Nonpowered
CAGE: 74965 — CLARK-RELIANCE LLC DBA JERGUSON GAGE & VALVE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.000 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
seat_angle_in_deg43.000 NOMINAL
nominal_thread_size0.750 INCHES SINGLE THREADED PORTION IN
under_flange_height0.500 INCHES NOMINAL IN
body_inside_diameter0.378 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_series_designatorUNF SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.125 INCHES NOMINAL IN
NSN4820-00-564-3320
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A7851PC19 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.125 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.000 INCHES NOMINAL IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 0.378 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.750 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.500 INCHES NOMINAL IN
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.125 INCHES NOMINAL IN
FLANGE DIAMETER1.000 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER0.378 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.750 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.500 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
MATERIALSTEEL CORROSION RESISTING OVERALL
SEAT ANGLE IN DEG43.000 NOMINAL
SUBSTITUTES & CROSS-REFERENCES 2
P755Reference document
Same NSN cross-reference
Reference document — Secondary reference
A7850PC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A7851PC19?
A7851PC19 is a SEAT,VALVE.
What parts can replace A7851PC19?
There are 2 known substitutes for A7851PC19: P755, A7850PC16. Substitute compatibility should be verified for your specific system.
What is the NSN for A7851PC19?
A7851PC19 is cataloged in the U.S. Government catalog under NSN 4820-00-564-3320. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.