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3186817 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3186817: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_height: 0.343 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.620 INCHES NOMINAL IN, thread_length: 1.250 INCHES MINIMUM IN, fastener_length: 10.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-434-5202, 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
3186817
NSN: 4820-00-434-5202
NIINs: 004345202, 010431348
FSC: 4820 — Valves, Nonpowered
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_height0.343 INCHES NOMINAL IN
thread_class3A A
head_diameter0.620 INCHES NOMINAL IN
thread_length1.250 INCHES MINIMUM IN
fastener_length10.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.376 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch24
NSN4820-00-434-5202
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3186817 · 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
•
FLOW CONTROL DEVICE: POPPET
•
MATERIAL: ALUMINUM BODY
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
SPECIAL FEATURESCARTRIDGE,CHECK VALVE
MATERIALALUMINUM BODY
VALVE OPERATION METHODAUTOMATIC
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3186817?
3186817 is a VALVE,CHECK.
What is the NSN for 3186817?
3186817 is cataloged in the U.S. Government catalog under NSN 4820-00-434-5202. 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.