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NMP-421 PIECE 18 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

NMP-421 PIECE 18: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, pressure_rating: 141.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 190.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-286-6468, 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
NMP-421 PIECE 18
NSN: 4820-01-286-6468
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialSTEEL
pressure_rating141.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 190.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
NSN4820-01-286-6468
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NMP-421 PIECE 18 · 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
•
PRESSURE RATING: 141.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 190.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
PRESSURE RATING141.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 190.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
MATERIALSTEEL
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
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NMP-421 PIECE 18?
NMP-421 PIECE 18 is a DISK,VALVE.
What is the NSN for NMP-421 PIECE 18?
NMP-421 PIECE 18 is cataloged in the U.S. Government catalog under NSN 4820-01-286-6468. 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.