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20401HPC43 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20401HPC43: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, overall_height: 0.625 INCHES NOMINAL IN, style_designator: PLAIN, body_inside_diameter: 10.500 INCHES NOMINAL IN, body_outside_diameter: 13.750 INCHES NOMINAL IN, seating_surface_shape: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-014-6791, 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
20401HPC43
NSN: 4820-00-014-6791
FSC: 4820 — Valves, Nonpowered
CAGE: 04537 — ATWOOD & MORRILL CO., INC. DBA WEIR VALVES AND CONTROLS USA (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
overall_height0.625 INCHES NOMINAL IN
style_designatorPLAIN
body_inside_diameter10.500 INCHES NOMINAL IN
body_outside_diameter13.750 INCHES NOMINAL IN
seating_surface_shapeFLAT
material_document_and_classificationMIL-R-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4820-00-014-6791
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20401HPC43 · 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
•
BODY OUTSIDE DIAMETER: 13.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 10.500 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.625 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER13.750 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER10.500 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
SEATING SURFACE SHAPEFLAT
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 20401HPC43?
20401HPC43 is a SEAT,VALVE.
What is the NSN for 20401HPC43?
20401HPC43 is cataloged in the U.S. Government catalog under NSN 4820-00-014-6791. 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.