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Technical Data Sheet
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189038 — STOP,COVER,DUST

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

189038: STOP,COVER,DUST.

The STOP,COVER,DUST is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-00-702-8830, 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
189038
NSN: 4820-00-702-8830
NIINs: 007028830, 008007303
FSC: 4820 — Valves, Nonpowered
CAGE: 64546 — DISCOVERY CORPORATION (USA)
SPECIFICATIONS
Part Number189038
NSN4820-00-702-8830
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 189038 · 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
SUBSTITUTES & CROSS-REFERENCES 1
Q4600-44Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 189038?
189038 is a STOP,COVER,DUST.
What parts can replace 189038?
There is 1 known substitute for 189038: Q4600-44. Substitute compatibility should be verified for your specific system.
What is the NSN for 189038?
189038 is cataloged in the U.S. Government catalog under NSN 4820-00-702-8830. This indicates validated use in U.S. government and defense supply chains.
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