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IE4128 — VALVE,PRESSURE EQUALIZING,GASEOU

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

IE4128: VALVE,PRESSURE EQUALIZING,GASEOU.

VALVE,PRESSURE EQUALIZING,GASEOU. Key specifications include material: ALUMINUM ALLOY, overall_width: 20.120 INCHES NOMINAL IN, overall_height: 11.620 INCHES NOMINAL IN, overall_length: 130.000 INCHES NOMINAL IN, end_item_identification: AIRCRAFT, (AC-130A, AC-130H, MC-130H, EC-130E, HC-130) A. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-446-6270, 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
IE4128
NSN: 4820-01-446-6270
NIINs: 014466270, 014472175
FSC: 4820 — Valves, Nonpowered
CAGE: 62012 — ZERO CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
overall_width20.120 INCHES NOMINAL IN
overall_height11.620 INCHES NOMINAL IN
overall_length130.000 INCHES NOMINAL IN
end_item_identificationAIRCRAFT, (AC-130A, AC-130H, MC-130H, EC-130E, HC-130) A
NSN4820-01-446-6270
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: IE4128 · 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
END ITEM IDENTIFICATIONAIRCRAFT, (AC-130A, AC-130H, MC-130H, EC-130E, HC-130) A
SUBSTITUTES & CROSS-REFERENCES 1
5-1052-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is IE4128?
IE4128 is a VALVE,PRESSURE EQUALIZING,GASEOU.
What parts can replace IE4128?
There is 1 known substitute for IE4128: 5-1052-8. Substitute compatibility should be verified for your specific system.
What is the NSN for IE4128?
IE4128 is cataloged in the U.S. Government catalog under NSN 4820-01-446-6270. 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.