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803-6983468-PC037 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

803-6983468-PC037: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 1.220 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 10.120 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 8.750 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-431-6687, 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-PC037
NSN: 4820-01-431-6687
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length1.220 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter10.120 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size8.750 INCHES SINGLE THREADED PORTION IN
under_flange_height1.690 INCHES NOMINAL IN
body_inside_diameter8.001 INCHES NOMINAL IN
seating_surface_shapeFLAT
end_item_identificationFIRE FIGHTING EQUIPMENT
thread_quantity_per_inch8 SINGLE THREADED PORTION
thread_series_designatorUN SINGLE THREADED PORTION
NSN4820-01-431-6687
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-6983468-PC037 · 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: 0.375 INCHES NOMINAL IN
•
FLANGE DIAMETER: 10.120 INCHES NOMINAL IN
•
THREAD LENGTH: 1.220 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-24480 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 8.001 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 8.750 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 1.690 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.375 INCHES NOMINAL IN
FLANGE DIAMETER10.120 INCHES NOMINAL IN
THREAD LENGTH1.220 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-24480 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER8.001 INCHES NOMINAL IN
NOMINAL THREAD SIZE8.750 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT1.690 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
END ITEM IDENTIFICATIONFIRE FIGHTING EQUIPMENT
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
6983468Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 803-6983468-PC037?
803-6983468-PC037 is a SEAT,VALVE.
What parts can replace 803-6983468-PC037?
There is 1 known substitute for 803-6983468-PC037: 6983468. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-6983468-PC037?
803-6983468-PC037 is cataloged in the U.S. Government catalog under NSN 4820-01-431-6687. 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.