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189569 — BUTTON,SPRING,PRESSURE REGULATIN

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

189569: BUTTON,SPRING,PRESSURE REGULATIN.

BUTTON,SPRING,PRESSURE REGULATIN. Key specifications include end_item_identification: MULTIPLE LAUNCH ROCKET SYSTEM (MLRS). This part is cataloged in the U.S.

Government catalog under NSN 4820-00-489-2469, 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
189569
NSN: 4820-00-489-2469
NIINs: 004892469, 009777489
FSC: 4820 — Valves, Nonpowered
CAGE: 57217 — STRIEGEL SUPPLY, INC. DBA STRIEGEL SUPPLY INC (USA)
SPECIFICATIONS
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
general_characteristics_item_descriptionSTEEL MATERIAL;7.000 IN. LG,6.000 IN. W,0.365 IN. THK;W/7 MTG HOLES 0.438 IN. DIA;ONE LIFTING HOLE 2.115 IN. DIA;USED ON V6-40,V8-185,V8-350 AND VT8-430 MDL CUMMINS ENGINES IN
NSN4820-00-489-2469
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 189569 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STAINLESS STEEL,RD SHAPE,CONCAVED ONE SIDE FOR ADJUSTING SCREW,STEPPED OTHER SIDE FOR SPRING
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTAINLESS STEEL,RD SHAPE,CONCAVED ONE SIDE FOR ADJUSTING SCREW,STEPPED OTHER SIDE FOR SPRING
SUBSTITUTES & CROSS-REFERENCES 1
1H9569Same 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 189569?
189569 is a BUTTON,SPRING,PRESSURE REGULATIN.
What parts can replace 189569?
There is 1 known substitute for 189569: 1H9569. Substitute compatibility should be verified for your specific system.
What is the NSN for 189569?
189569 is cataloged in the U.S. Government catalog under NSN 4820-00-489-2469. 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.