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3543FPC4 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3543FPC4: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, style_designator: PLAIN THREADED, nominal_thread_size: 3.000 INCHES SINGLE THREADED PORTION IN, thread_quantity_per_inch: 18 SINGLE THREADED PORTION, thread_series_designator: UNS SINGLE THREADED PORTION. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-035-9507, 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
3543FPC4
NSN: 4820-00-035-9507
FSC: 4820 — Valves, Nonpowered
CAGE: 04537 — ATWOOD & MORRILL CO., INC. DBA WEIR VALVES AND CONTROLS USA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
style_designatorPLAIN THREADED
nominal_thread_size3.000 INCHES SINGLE THREADED PORTION IN
thread_quantity_per_inch18 SINGLE THREADED PORTION
thread_series_designatorUNS SINGLE THREADED PORTION
NSN4820-00-035-9507
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3543FPC4 · 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
•
STYLE DESIGNATOR: PLAIN THREADED
•
NOMINAL THREAD SIZE: 3.000 INCHES SINGLE THREADED PORTION IN
•
THREAD QUANTITY PER INCH: 18 SINGLE THREADED PORTION
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNS SINGLE THREADED PORTION
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPLAIN THREADED
NOMINAL THREAD SIZE3.000 INCHES SINGLE THREADED PORTION IN
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3543FPC4?
3543FPC4 is a SEAT,VALVE.
What is the NSN for 3543FPC4?
3543FPC4 is cataloged in the U.S. Government catalog under NSN 4820-00-035-9507. 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.