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MIL-V-20420 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

MIL-V-20420: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, body_style: STRAIGHT THRU, temp_rating: 165.0 FAHRENHEIT NOMINAL DEGF, regulation_type: AUTOMATIC DOUBLE STAGE, special_features: ENDS W/O BRAZING RINGS INSTALLED, valve_stem_design: SINGLE SEAT. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-181-8912, 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
MIL-V-20420
NSN: 4820-00-181-8912
NIINs: 001818912, 014229395
FSC: 4820 — Valves, Nonpowered
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
filterNOT INCLUDED
body_styleSTRAIGHT THRU
temp_rating165.0 FAHRENHEIT NOMINAL DEGF
regulation_typeAUTOMATIC DOUBLE STAGE
special_featuresENDS W/O BRAZING RINGS INSTALLED
valve_stem_designSINGLE SEAT
flow_control_deviceDIAPHRAGM
valve_loading_methodSPRING
outlet_pressure_range25.0 TO 60.0 CAMERA MOUNT
special_test_featuresHIGH-IMPACT SHOCK TESTS ARE REQUIRED AS DIRECTED IN PARAGRAPHS 3.6 AND 4.4.2.3 OF MIL-V-2042
end_connection_quantity2
media_for_which_designedWATER, FRESH AND WATER, SALT
NSN4820-00-181-8912
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MIL-V-20420 · 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
•
FLOW CONTROL DEVICE: DIAPHRAGM
•
VALVE STEM DESIGN: SINGLE SEAT
•
RENEWABLE SEAT RING TYPE: THREADED
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: AUTOMATIC DOUBLE STAGE
•
FIRST END STYLE DESIGNATOR: STREAMLINED WITH ONE BRAZING RING
•
SPECIAL TEST FEATURES: HIGH-IMPACT SHOCK TESTS ARE REQUIRED AS DIRECTED IN PARAGRAPHS 3.6 AND 4.4.2.3 OF MIL-V-2042
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDIAPHRAGM
VALVE STEM DESIGNSINGLE SEAT
RENEWABLE SEAT RING TYPETHREADED
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
BODY STYLESTRAIGHT THRU
REGULATION TYPEAUTOMATIC DOUBLE STAGE
FIRST END STYLE DESIGNATORSTREAMLINED WITH ONE BRAZING RING
SPECIAL TEST FEATURESHIGH-IMPACT SHOCK TESTS ARE REQUIRED AS DIRECTED IN PARAGRAPHS 3.6 AND 4.4.2.3 OF MIL-V-2042
TEMP RATING165.0 FAHRENHEIT NOMINAL DEGF
END CONNECTION QUANTITY2
SUBSTITUTES & CROSS-REFERENCES 9
4361 1 1/4IN 30Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
40400-09 25T60PSIReference document
Same NSN cross-reference
Reference document — Secondary reference
4820PL1341134Reference document
Same NSN cross-reference
Reference document — Informative reference only
N-498Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
TYPE NEReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MILV2042Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MIL-V-20420?
MIL-V-20420 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace MIL-V-20420?
There are 9 known substitutes for MIL-V-20420: 4361 1 1/4IN 30, 40400-09 25T60PSI, 4820PL1341134 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-V-20420?
MIL-V-20420 is cataloged in the U.S. Government catalog under NSN 4820-00-181-8912. This indicates validated use in U.S. government and defense supply chains.
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