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8559-074-063 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8559-074-063: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410, overall_length: 47.375 INCHES NOMINAL IN, features_provided: RISING STEM, end_item_identification: NIMITZ CLASS CVN, stem_actuating_end_type: THREADED EXTERNALLY, largest_outside_diameter: 2.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-424-9871, 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
8559-074-063
NSN: 4820-01-424-9871
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL COMP 410
overall_length47.375 INCHES NOMINAL IN
features_providedRISING STEM
end_item_identificationNIMITZ CLASS CVN
stem_actuating_end_typeTHREADED EXTERNALLY
largest_outside_diameter2.750 INCHES NOMINAL IN
valve_size_for_which_designed16.000 INCHES IN
valve_type_for_which_designedGATE
NSN4820-01-424-9871
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8559-074-063 · 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: GATE
•
LARGEST OUTSIDE DIAMETER: 2.750 INCHES NOMINAL IN
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
•
FEATURES PROVIDED: RISING STEM
•
VALVE SIZE FOR WHICH DESIGNED: 16.000 INCHES IN
•
MATERIAL: STEEL COMP 410
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDGATE
LARGEST OUTSIDE DIAMETER2.750 INCHES NOMINAL IN
STEM ACTUATING END TYPETHREADED EXTERNALLY
OVERALL LENGTH47.375 INCHES NOMINAL IN
FEATURES PROVIDEDRISING STEM
VALVE SIZE FOR WHICH DESIGNED16.000 INCHES IN
END ITEM IDENTIFICATIONNIMITZ CLASS CVN
MATERIALSTEEL COMP 410
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 1
9799-733 ITEM 3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 8559-074-063?
8559-074-063 is a STEM,FLUID VALVE.
What parts can replace 8559-074-063?
There is 1 known substitute for 8559-074-063: 9799-733 ITEM 3. Substitute compatibility should be verified for your specific system.
What is the NSN for 8559-074-063?
8559-074-063 is cataloged in the U.S. Government catalog under NSN 4820-01-424-9871. 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.