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18356NPC3 — DIAPHRAGM,ACTUATOR VALVE,SPECIAL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

18356NPC3: DIAPHRAGM,ACTUATOR VALVE,SPECIAL.

DIAPHRAGM,ACTUATOR VALVE,SPECIAL. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-630-9271, 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
18356NPC3
NSN: 4820-00-630-9271
NIINs: 006309271, 011394154
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
NSN4820-00-630-9271
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 18356NPC3 · 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
•
OUTSIDE DIAMETER: 12.000 INCHES NOMINAL IN
•
TAPER MINOR DIAMETER: 7.780 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPECIAL SHAPED
•
TAPER MAJOR DIAMETER: 8.725 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.108 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 14
•
BOLT CIRCLE DIAMETER: 11.315 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.468 INCHES NOMINAL IN
OUTSIDE DIAMETER12.000 INCHES NOMINAL IN
TAPER MINOR DIAMETER7.780 INCHES NOMINAL IN
STYLE DESIGNATORSPECIAL SHAPED
TAPER MAJOR DIAMETER8.725 INCHES NOMINAL IN
MATERIAL THICKNESS0.108 INCHES NOMINAL IN
BOLT HOLE QUANTITY14
BOLT CIRCLE DIAMETER11.315 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.000 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
SUBSTITUTES & CROSS-REFERENCES 5
A3780994Reference document
Same NSN cross-reference
Reference document — Secondary reference
37809Reference document
Same NSN cross-reference
Reference document — Secondary reference
12313NPC14Reference document
Same NSN cross-reference
Reference document — Secondary reference
4820PL1380141Reference document
Same NSN cross-reference
Reference document — Informative reference only
A37809Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 18356NPC3?
18356NPC3 is a DIAPHRAGM,ACTUATOR VALVE,SPECIAL.
What parts can replace 18356NPC3?
There are 5 known substitutes for 18356NPC3: A3780994, 37809, 12313NPC14 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18356NPC3?
18356NPC3 is cataloged in the U.S. Government catalog under NSN 4820-00-630-9271. 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.