HS-1021 — SWITCH,SENSITIVE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

HS-1021: SWITCH,SENSITIVE.

The SWITCH,SENSITIVE is a the manufacturer industrial component. Key specifications include body_style: BUSHING MOUNTED, body_length: 1.481 INCHES NOMINAL IN, thread_class: 2A A, body_diameter: 0.750 INCHES MAXIMUM IN, actuator_style: ROUND, bushing_length: 0.469 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5965-01-049-7487, 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

HS-1021

NSN: 5965-01-049-7487
NIINs: 010497487, 013720238
FSC: 5965 — Headsets, Handsets, Microphones and Speakers
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)

SPECIFICATIONS

body_style	BUSHING MOUNTED
body_length	1.481 INCHES NOMINAL IN
thread_class	2A A
body_diameter	0.750 INCHES MAXIMUM IN
actuator_style	ROUND
bushing_length	0.469 INCHES NOMINAL IN
connector_name	PLUG
inclosure_type	FULLY INCLOSED
actuator_height	0.310 INCHES MAXIMUM IN
mounting_method	THREADED BUSHING
frequency_rating	200.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM
impedance_rating	30.0 OHMS NOMINAL
NSN	5965-01-049-7487

COMPONENT DIAGRAM

KEY FEATURES

•

MICROPHONE ELEMENT TYPE: CARBON

•

MOUNTING METHOD: IN BAR CUSHIONS SUSPENDED IN HELMET EARPHONE

•

MICROPHONE MOUNTING FACILITY: BOOM ADAPTER ON LEFT SIDE OF HEADBAND

•

EARPHONE IDENTIFYING NUMBER: 111380-55 DRAWING NO.

•

EARPHONE QUANTITY: 2

•

CONNECTOR IDENTIFYING NUMBER: UG-77/U TYPE NO.

•

IMPEDANCE RATING: 30.0 OHMS NOMINAL

•

CONNECTOR CONTROLLING AGENCY: JETDS

TECHNICAL CHARACTERISTICS

MICROPHONE ELEMENT TYPE	CARBON
MOUNTING METHOD	IN BAR CUSHIONS SUSPENDED IN HELMET EARPHONE
MICROPHONE MOUNTING FACILITY	BOOM ADAPTER ON LEFT SIDE OF HEADBAND
EARPHONE IDENTIFYING NUMBER	111380-55 DRAWING NO.
EARPHONE QUANTITY	2
CONNECTOR IDENTIFYING NUMBER	UG-77/U TYPE NO.
IMPEDANCE RATING	30.0 OHMS NOMINAL
CONNECTOR CONTROLLING AGENCY	JETDS
EARPHONE ELEMENT TYPE	DYNAMIC
FREQUENCY RATING	200.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM

SUBSTITUTES & CROSS-REFERENCES 2

114660-690Reference document

Same NSN cross-reference

Reference document — Secondary reference

490-443-001-690Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is HS-1021?

HS-1021 is a SWITCH,SENSITIVE.

What parts can replace HS-1021?

There are 2 known substitutes for HS-1021: 114660-690, 490-443-001-690. Substitute compatibility should be verified for your specific system.

What is the NSN for HS-1021?

HS-1021 is cataloged in the U.S. Government catalog under NSN 5965-01-049-7487. This indicates validated use in U.S. government and defense supply chains.

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