3988AS9811-1 — SWITCH,LIQUID LEVEL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3988AS9811-1: SWITCH,LIQUID LEVEL.

The SWITCH,LIQUID LEVEL is a the manufacturer industrial component. Key specifications include overall_length: 18.0 INCHES NOMINAL IN, actuation_method: BUOYANCY, overall_diameter: 1.88 INCHES NOMINAL IN, liquid_type_for_which_designed: HYDRAULIC FLUID, part_name_assigned_by_controlling_agency: LEVEL SWITCH. This part is cataloged in the U.S.

Government catalog under NSN 5930-01-664-3635, 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

3988AS9811-1

NSN: 5930-01-664-3635
FSC: 5930 — Switches
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

float_quantity	2
overall_length	18.0 INCHES NOMINAL IN
actuation_method	BUOYANCY
overall_diameter	1.88 INCHES NOMINAL IN
liquid_type_for_which_designed	HYDRAULIC FLUID
part_name_assigned_by_controlling_agency	LEVEL SWITCH
NSN	5930-01-664-3635

COMPONENT DIAGRAM

KEY FEATURES

•

ACTUATION METHOD: BUOYANCY

•

OVERALL DIAMETER: 1.88 INCHES NOMINAL IN

•

FLOAT QUANTITY: 2

•

LIQUID TYPE FOR WHICH DESIGNED: HYDRAULIC FLUID

TECHNICAL CHARACTERISTICS

ACTUATION METHOD	BUOYANCY
OVERALL DIAMETER	1.88 INCHES NOMINAL IN
OVERALL LENGTH	18.0 INCHES NOMINAL IN
FLOAT QUANTITY	2
LIQUID TYPE FOR WHICH DESIGNED	HYDRAULIC FLUID
SPECIAL FEATURES	MOUNTING TYPE: 1/2" NPT BRASS STEM MATERIAL: BRASS GROOVED FLOAT MATERIAL: BUNA-N OVERALL LENGTH: 18.00" SWITCH RATING 20 VA LEAD WIRES: 18 AWG, 24" LONG PTFE JACKET OPERATING PRESSURE MAX: 150 PSI SINGLE POLE SINGLE THROW 2 FLOATS
PART NAME ASSIGNED BY CONTROLLING AGENCY	LEVEL SWITCH

SUBSTITUTES & CROSS-REFERENCES 2

LS-800-1-BR-BN-SPST-20-GR1-2Reference document

Same NSN cross-reference

Reference document — Secondary reference

122538Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 3988AS9811-1?

3988AS9811-1 is a SWITCH,LIQUID LEVEL.

What parts can replace 3988AS9811-1?

There are 2 known substitutes for 3988AS9811-1: LS-800-1-BR-BN-SPST-20-GR1-2, 122538. Substitute compatibility should be verified for your specific system.

What is the NSN for 3988AS9811-1?

3988AS9811-1 is cataloged in the U.S. Government catalog under NSN 5930-01-664-3635. This indicates validated use in U.S. government and defense supply chains.

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3988AS9811-1 — SWITCH,LIQUID LEVEL

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