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8020-51-7 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8020-51-7: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, special_features: 3-WAY BALL VALVE, 1NPS BALL, .5/.75 NPS; TITANIUM, valve_size_for_which_designed: 1.000 INCHES IN, valve_type_for_which_designed: BALL, part_name_assigned_by_controlling_agency: STEM, VALVE, 3-WAY 1.00 NPS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-628-0141, 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
8020-51-7
NSN: 4820-01-628-0141
FSC: 4820 — Valves, Nonpowered
CAGE: 62144 — PARKER HANNIFIN CORPORATION DIV VILLAGE MARINE TECH (USA)
SPECIFICATIONS
materialNICKEL ALLOY
special_features3-WAY BALL VALVE, 1NPS BALL, .5/.75 NPS; TITANIUM
valve_size_for_which_designed1.000 INCHES IN
valve_type_for_which_designedBALL
part_name_assigned_by_controlling_agencySTEM, VALVE, 3-WAY 1.00 NPS
NSN4820-01-628-0141
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8020-51-7 · 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: BALL
•
VALVE SIZE FOR WHICH DESIGNED: 1.000 INCHES IN
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDBALL
VALVE SIZE FOR WHICH DESIGNED1.000 INCHES IN
SPECIAL FEATURES3-WAY BALL VALVE, 1NPS BALL, .5/.75 NPS; TITANIUM
PART NAME ASSIGNED BY CONTROLLING AGENCYSTEM, VALVE, 3-WAY 1.00 NPS
MATERIALNICKEL ALLOY
SUBSTITUTES & CROSS-REFERENCES 2
M3589 PC NO 4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
M3589Reference 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 8020-51-7?
8020-51-7 is a STEM,FLUID VALVE.
What parts can replace 8020-51-7?
There are 2 known substitutes for 8020-51-7: M3589 PC NO 4, M3589. Substitute compatibility should be verified for your specific system.
What is the NSN for 8020-51-7?
8020-51-7 is cataloged in the U.S. Government catalog under NSN 4820-01-628-0141. 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.