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806-8420 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

806-8420: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: INCLUDED, material: RUBBER SEAT, body_style: STRAIGHT THRU, temp_rating: 120.0 FAHRENHEIT MAXIMUM DEGF, regulation_type: AUTOMATIC DOUBLE STAGE, flow_control_device: DIAPHRAGM. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-230-3530, 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
806-8420
NSN: 4820-00-230-3530
FSC: 4820 — Valves, Nonpowered
CAGE: 00741 — MESSER LLC (USA)
SPECIFICATIONS
filterINCLUDED
materialRUBBER SEAT
body_styleSTRAIGHT THRU
temp_rating120.0 FAHRENHEIT MAXIMUM DEGF
regulation_typeAUTOMATIC DOUBLE STAGE
flow_control_deviceDIAPHRAGM
valve_loading_methodSPRING
manual_control_methodSCREW
end_connection_quantity2
remote_actuation_methodDIAPHRAGM
second_end_thread_class3B
media_for_which_designedNITROGEN, LIQUID
NSN4820-00-230-3530
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 806-8420 · 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
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
SECOND END THREAD CLASS: 3B
•
REMOTE ACTUATION METHOD: DIAPHRAGM
•
BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: AUTOMATIC DOUBLE STAGE
•
FIRST END STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDIAPHRAGM
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END THREAD CLASS3B
REMOTE ACTUATION METHODDIAPHRAGM
BODY STYLESTRAIGHT THRU
REGULATION TYPEAUTOMATIC DOUBLE STAGE
FIRST END STYLE DESIGNATORPLAIN
TEMP RATING120.0 FAHRENHEIT MAXIMUM DEGF
END CONNECTION QUANTITY2
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 806-8420?
806-8420 is a VALVE,REGULATING,FLUID PRESSURE.
What is the NSN for 806-8420?
806-8420 is cataloged in the U.S. Government catalog under NSN 4820-00-230-3530. 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.