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004.500.0020 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

004.500.0020: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, overall_length: 10.656 INCHES NOMINAL IN, special_features: FOR SALT WATER SERVICE, end_item_identification: NIMITZ CLASS CVN, stem_actuating_end_type: ROUNDED, largest_outside_diameter: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-438-5380, 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
004.500.0020
NSN: 4820-01-438-5380
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialNICKEL ALLOY
overall_length10.656 INCHES NOMINAL IN
special_featuresFOR SALT WATER SERVICE
end_item_identificationNIMITZ CLASS CVN
stem_actuating_end_typeROUNDED
largest_outside_diameter0.750 INCHES NOMINAL IN
valve_size_for_which_designed1.500 INCHES IN
valve_type_for_which_designedRELIEF
valve_model_number_for_which_designedNMP-722
NSN4820-01-438-5380
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 004.500.0020 · 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
•
VALVE TYPE FOR WHICH DESIGNED: RELIEF
•
LARGEST OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
STEM ACTUATING END TYPE: ROUNDED
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: NMP-722
•
VALVE SIZE FOR WHICH DESIGNED: 1.500 INCHES IN
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDRELIEF
LARGEST OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
STEM ACTUATING END TYPEROUNDED
VALVE MODEL NUMBER FOR WHICH DESIGNEDNMP-722
OVERALL LENGTH10.656 INCHES NOMINAL IN
VALVE SIZE FOR WHICH DESIGNED1.500 INCHES IN
SPECIAL FEATURESFOR SALT WATER SERVICE
END ITEM IDENTIFICATIONNIMITZ CLASS CVN
MATERIALNICKEL ALLOY
SUBSTITUTES & CROSS-REFERENCES 2
NMP-722 PIECE 13ALTReference document
Same NSN cross-reference
Reference document — Secondary reference
NMP-722Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 004.500.0020?
004.500.0020 is a STEM,FLUID VALVE.
What parts can replace 004.500.0020?
There are 2 known substitutes for 004.500.0020: NMP-722 PIECE 13ALT, NMP-722. Substitute compatibility should be verified for your specific system.
What is the NSN for 004.500.0020?
004.500.0020 is cataloged in the U.S. Government catalog under NSN 4820-01-438-5380. 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.