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42256-B — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

42256-B: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC PHENOLIC, power_source: EXTERNAL, movement_type: MOVING COIL, PERMANENT MAGNET, overall_width: 1.760 INCHES NOMINAL IN, pointer_color: BLACK SINGLE INDICATOR SINGLE RANGE, indicator_type: DIAL W/POINTER. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-010-1660, 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
42256-B
NSN: 4820-00-010-1660
FSC: 4820 — Valves, Nonpowered
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialPLASTIC PHENOLIC
power_sourceEXTERNAL
movement_typeMOVING COIL, PERMANENT MAGNET
overall_width1.760 INCHES NOMINAL IN
pointer_colorBLACK SINGLE INDICATOR SINGLE RANGE
indicator_typeDIAL W/POINTER
overall_height1.760 INCHES NOMINAL IN
overall_length1.830 INCHES NOMINAL IN
style_designatorRECTANGULAR FLUSH MTG
features_providedMAGNETIC SHIELD AND ZERO ADJUSTER
measurement_range+0.0 TO 5.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
sensitivity_rating0.01 OHMS
NSN4820-00-010-1660
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 42256-B · 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
02434Reference document
Same NSN cross-reference
Reference document — Secondary 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 42256-B?
42256-B is a DISK,VALVE.
What parts can replace 42256-B?
There is 1 known substitute for 42256-B: 02434. Substitute compatibility should be verified for your specific system.
What is the NSN for 42256-B?
42256-B is cataloged in the U.S. Government catalog under NSN 4820-00-010-1660. 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.