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N178 AC — RELAY,ELECTROMAGNETIC

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

N178 AC: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-281-7858, 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
N178 AC
NSN: 4820-01-281-7858
FSC: 4820 — Valves, Nonpowered
CAGE: 06721 — HALDEX BRAKE PRODUCTS CORPORATION (USA)
SPECIFICATIONS
Part NumberN178 AC
NSN4820-01-281-7858
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N178 AC · 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 2
4900088Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
N1178ACSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 N178 AC?
N178 AC is a RELAY,ELECTROMAGNETIC.
What parts can replace N178 AC?
There are 2 known substitutes for N178 AC: 4900088, N1178AC. Substitute compatibility should be verified for your specific system.
What is the NSN for N178 AC?
N178 AC is cataloged in the U.S. Government catalog under NSN 4820-01-281-7858. This indicates validated use in U.S. government and defense supply chains.
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