PartsTable
Technical Data Sheet
Download PDF

803-6983468-PC030 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

803-6983468-PC030: 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: 0.400 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 1.620 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 1.312 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-431-6675, 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-PC030
NSN: 4820-01-431-6675
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.400 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.620 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size1.312 INCHES SINGLE THREADED PORTION IN
under_flange_height0.530 INCHES NOMINAL IN
body_inside_diameter1.000 INCHES NOMINAL IN
seating_surface_shapeFLAT
end_item_identificationUSED ON THE FIRE FIGHTING EQUIPMENT
thread_series_designatorUNF SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.250 INCHES NOMINAL IN
NSN4820-01-431-6675
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-6983468-PC030 · 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: 0.250 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.620 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-B-24480 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.400 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.312 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.530 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.250 INCHES NOMINAL IN
FLANGE DIAMETER1.620 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-B-24480 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.400 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER1.000 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.312 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.530 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
END ITEM IDENTIFICATIONUSED ON THE FIRE 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 2
6983468-PIECE 30Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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
Ready to buy 803-6983468-PC030?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 803-6983468-PC030?
803-6983468-PC030 is a SEAT,VALVE.
What parts can replace 803-6983468-PC030?
There are 2 known substitutes for 803-6983468-PC030: 6983468-PIECE 30, 6983468. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-6983468-PC030?
803-6983468-PC030 is cataloged in the U.S. Government catalog under NSN 4820-01-431-6675. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 803-6983468-PC030

✓ 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.