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N-12188 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

N-12188: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, valve_size: 5.000 INCHES IN, valve_type: GATE, taper_length: 5.000 INCHES NOMINAL IN, overall_height: 0.937 INCHES NOMINAL IN, special_features: NEXT HIGHER ASSEMBLY VALVE GATE 5 INCH IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-459-5680, 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
N-12188
NSN: 4820-01-459-5680
NIINs: 014595680, 014595681, 014596845, 014673122
FSC: 4820 — Valves, Nonpowered
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY
valve_size5.000 INCHES IN
valve_typeGATE
taper_length5.000 INCHES NOMINAL IN
overall_height0.937 INCHES NOMINAL IN
special_featuresNEXT HIGHER ASSEMBLY VALVE GATE 5 INCH IN
style_designatorSOLID WEDGE
body_inside_diameter5.187 INCHES NOMINAL IN
taper_major_diameter1.825 INCHES NOMINAL IN
taper_minor_diameter0.823 INCHES NOMINAL IN
body_outside_diameter5.625 INCHES NOMINAL IN
seating_surface_shapeO-RING
NSN4820-01-459-5680
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N-12188 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE
•
VALVE SIZE: 5.000 INCHES IN
•
VALVE TYPE: GATE
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE
VALVE SIZE5.000 INCHES IN
SPECIAL FEATURESNHA VALVE GATE 5 INCH IN
VALVE TYPEGATE
END ITEM IDENTIFICATIONW/S CODE NIMITZ CLASS CVN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N-12188?
N-12188 is a DISK,VALVE.
What is the NSN for N-12188?
N-12188 is cataloged in the U.S. Government catalog under NSN 4820-01-459-5680. 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.