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190320 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

190320: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHER, fastener_length: 25.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, thread_series_designator: ISO M, part_name_assigned_by_controlling_agency: BOLT,MACHINE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-222-4585, 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
190320
NSN: 4820-01-222-4585
NIINs: 012224585, 016987147
FSC: 4820 — Valves, Nonpowered
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHER
fastener_length25.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
thread_series_designatorISO M
part_name_assigned_by_controlling_agencyBOLT,MACHINE
NSN4820-01-222-4585
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 190320 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESO/A LG 4.047 IN.;STEM A-9976,STEM RETAINING RING A-9949,SPRING A-9690,DISK HOLDER A-9658,DISK LOCKNUT A-9978,DISK A-9979 ARE ALL INTEGRAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 190320?
190320 is a STEM,FLUID VALVE.
What is the NSN for 190320?
190320 is cataloged in the U.S. Government catalog under NSN 4820-01-222-4585. 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.