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1819603 — VALVE,CALIBRATED FLOW

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1819603: VALVE,CALIBRATED FLOW.

The VALVE,CALIBRATED FLOW is a the manufacturer industrial component. Key specifications include material: RUBBER PACKING, media_for_which_designed: WATER, valve_discharge_flow_rate: 11.0 GALLONS PER MINUTE, maximum_inlet_pressure_rating: ERR-060, second_end_relationship_with_first_end: NOT IDENTICAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-326-0840, 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
1819603
NSN: 4820-01-326-0840
FSC: 4820 — Valves, Nonpowered
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialRUBBER PACKING
end_connection_quantity2
media_for_which_designedWATER
valve_discharge_flow_rate11.0 GALLONS PER MINUTE
maximum_inlet_pressure_ratingERR-060
second_end_relationship_with_first_endNOT IDENTICAL
NSN4820-01-326-0840
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1819603 · 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
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
BODY STYLE: SCREW-IN CARTRIDGE
•
END CONNECTION QUANTITY: 2
•
MATERIAL: RUBBER PACKING
•
MEDIA FOR WHICH DESIGNED: WATER
•
MAXIMUM INLET PRESSURE RATING: ERR-060
•
VALVE DISCHARGE FLOW RATE: 11.0 GALLONS PER MINUTE
TECHNICAL CHARACTERISTICS
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
BODY STYLESCREW-IN CARTRIDGE
END CONNECTION QUANTITY2
MATERIALRUBBER PACKING
MEDIA FOR WHICH DESIGNEDWATER
MAXIMUM INLET PRESSURE RATINGERR-060
VALVE DISCHARGE FLOW RATE11.0 GALLONS PER MINUTE
SUBSTITUTES & CROSS-REFERENCES 2
1977621Reference document
Same NSN cross-reference
Reference document — Secondary reference
1977621 ITEM 35Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1819603?
1819603 is a VALVE,CALIBRATED FLOW.
What parts can replace 1819603?
There are 2 known substitutes for 1819603: 1977621, 1977621 ITEM 35. Substitute compatibility should be verified for your specific system.
What is the NSN for 1819603?
1819603 is cataloged in the U.S. Government catalog under NSN 4820-01-326-0840. 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.