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803-6983468-PCO33 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

803-6983468-PCO33: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.570 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 3.500 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 3.125 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-431-9193, 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
803-6983468-PCO33
NSN: 4820-01-431-9193
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.570 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter3.500 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size3.125 INCHES SINGLE THREADED PORTION IN
under_flange_height0.970 INCHES NOMINAL IN
body_inside_diameter3.000 INCHES MINIMUM AND 3.002 INCHES MAXIMUM IN
seating_surface_shapeFLAT
thread_quantity_per_inch8 SINGLE THREADED PORTION
thread_series_designatorUN SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.188 INCHES NOMINAL IN
NSN4820-01-431-9193
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-6983468-PCO33 · 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: 0.188 INCHES NOMINAL IN
•
FLANGE DIAMETER: 3.500 INCHES NOMINAL IN
•
THREAD LENGTH: 0.570 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 3.000 INCHES MINIMUM AND 3.002 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 3.125 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.970 INCHES NOMINAL IN
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.188 INCHES NOMINAL IN
FLANGE DIAMETER3.500 INCHES NOMINAL IN
THREAD LENGTH0.570 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER3.000 INCHES MINIMUM AND 3.002 INCHES MAXIMUM IN
NOMINAL THREAD SIZE3.125 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.970 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH8 SINGLE THREADED PORTION
MATERIALALUMINUM OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
803-6983468Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 803-6983468-PCO33?
803-6983468-PCO33 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 803-6983468-PCO33?
There is 1 known substitute for 803-6983468-PCO33: 803-6983468. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-6983468-PCO33?
803-6983468-PCO33 is cataloged in the U.S. Government catalog under NSN 4820-01-431-9193. 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.