522A — MASTER ALARM,MODULE

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

522A: MASTER ALARM,MODULE.

The MASTER ALARM,MODULE is a the manufacturer industrial component. Key specifications include terminal_type: TAB, SOLDER LUG, special_features: MOISTURE AND FUNGUS RESISTANT,KNOB MARKED W/ WHITE LINE, features_provided: ACTUATOR KNOB, contact_switching_action: BREAKS BEFORE MAKES SINGLE SECTION IN-LINE, terminal_type_and_quantity: 2 SCREW, switch_contact_basic_design: PILE-UP. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-235-9764, 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

MRO→ MRO_GENERAL→ 522A

NSN: 5930-00-235-9764
NIINs: 002359764, 002522578, 009463132
FSC: 5930 — Switches
CAGE: 06KW9 — LUCENT TECHNOLOGIES INC DBA FEDERAL MARKETING GROUP (USA)

SPECIFICATIONS

terminal_type	TAB, SOLDER LUG
special_features	MOISTURE AND FUNGUS RESISTANT,KNOB MARKED W/ WHITE LINE
features_provided	ACTUATOR KNOB
contact_switching_action	BREAKS BEFORE MAKES SINGLE SECTION IN-LINE
terminal_type_and_quantity	2 SCREW
individual_section_quantity	1
switch_contact_basic_design	PILE-UP
switch_actuator_positioning_increment	90.0 DEGREES SINGLE ACTUATOR
switch_actuator_indexing_position_quantity	2 SINGLE ACTUATOR
NSN	5930-00-235-9764

COMPONENT DIAGRAM

KEY FEATURES

•

SWITCH CONTACT BASIC DESIGN: PILE-UP

•

TERMINAL TYPE: TAB, SOLDER LUG

•

INDIVIDUAL SECTION QUANTITY: 1

•

FEATURES PROVIDED: ACTUATOR KNOB

•

CONTACT SWITCHING ACTION: BREAKS BEFORE MAKES SINGLE SECTION IN-LINE

•

SWITCH ACTUATOR POSITIONING INCREMENT: 90.0 DEGREES SINGLE ACTUATOR

•

SWITCH ACTUATOR INDEXING POSITION QUANTITY: 2 SINGLE ACTUATOR

TECHNICAL CHARACTERISTICS

SWITCH CONTACT BASIC DESIGN	PILE-UP
TERMINAL TYPE	TAB, SOLDER LUG
INDIVIDUAL SECTION QUANTITY	1
FEATURES PROVIDED	ACTUATOR KNOB
CONTACT SWITCHING ACTION	BREAKS BEFORE MAKES SINGLE SECTION IN-LINE
SPECIAL FEATURES	MOISTURE AND FUNGUS RESISTANT,KNOB MARKED W/ WHITE LINE
SWITCH ACTUATOR POSITIONING INCREMENT	90.0 DEGREES SINGLE ACTUATOR
SWITCH ACTUATOR INDEXING POSITION QUANTITY	2 SINGLE ACTUATOR

SUBSTITUTES & CROSS-REFERENCES 2

0161892AReference document

Same NSN cross-reference

Reference document — Secondary reference

552ASame 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 522A?

522A is a MASTER ALARM,MODULE. It is classified as a MRO (MRO_GENERAL).

What parts can replace 522A?

There are 2 known substitutes for 522A: 0161892A, 552A. Substitute compatibility should be verified for your specific system.

What is the NSN for 522A?

522A is cataloged in the U.S. Government catalog under NSN 5930-00-235-9764. This indicates validated use in U.S. government and defense supply chains.

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