HM400A1AB — HYGROTHERMOGRAPH

✓ Government record, cited

VAISALA INC. · COMPONENT

PRODUCT OVERVIEW

HM400A1AB: HYGROTHERMOGRAPH.

The HYGROTHERMOGRAPH is a VAISALA INC. industrial component. Key specifications include CASE TYPE: RECTANGULAR, OVERALL WIDTH: 57.0 MILLIMETERS NOMINAL MM, OVERALL HEIGHT: 27.0 MILLIMETERS NOMINAL MM, OVERALL LENGTH: 160.0 MILLIMETERS NOMINAL MM, SPECIAL FEATURES: 3.5 DIGITAL LCD; HOUSING ABC PLASTIC, MEASUREMENT RANGE: -20.0 TO 60.0 DEG CELSIUS AND +0.0 TO 100.0 PERCENT RELATIVE HUMIDITY.

This part is cataloged in the U.S. Government catalog under NSN 6685-01-443-4032, 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

HM400A1AB

NSN: 6685-01-443-4032
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
CAGE: 63653 — VAISALA INC. (USA)

SPECIFICATIONS

CASE TYPE	RECTANGULAR
OVERALL WIDTH	57.0 MILLIMETERS NOMINAL MM
OVERALL HEIGHT	27.0 MILLIMETERS NOMINAL MM
OVERALL LENGTH	160.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURES	3.5 DIGITAL LCD; HOUSING ABC PLASTIC
MEASUREMENT RANGE	-20.0 TO 60.0 DEG CELSIUS AND +0.0 TO 100.0 PERCENT RELATIVE HUMIDITY
END ITEM IDENTIFICATION	NAVSTAR GLOBAL POSITIONING SYSTEM USER EQUIP.
VOLTAGE RATING IN VOLTS	9.0 DC NOMINAL
NSN	6685-01-443-4032

COMPONENT DIAGRAM

KEY FEATURES

•

CASE TYPE: RECTANGULAR

•

MEASUREMENT RANGE: -20.0 TO 60.0 DEG CELSIUS AND +0.0 TO 100.0 PERCENT RELATIVE HUMIDITY

•

VOLTAGE RATING IN VOLTS: 9.0 DC NOMINAL

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	27.0 MILLIMETERS NOMINAL MM
OVERALL LENGTH	160.0 MILLIMETERS NOMINAL MM
OVERALL WIDTH	57.0 MILLIMETERS NOMINAL MM
CASE TYPE	RECTANGULAR
SPECIAL FEATURES	3.5 DIGITAL LCD; HOUSING ABC PLASTIC
END ITEM IDENTIFICATION	NAVSTAR GLOBAL POSITIONING SYSTEM USER EQUIP.
MEASUREMENT RANGE	-20.0 TO 60.0 DEG CELSIUS AND +0.0 TO 100.0 PERCENT RELATIVE HUMIDITY
VOLTAGE RATING IN VOLTS	9.0 DC NOMINAL

SUBSTITUTES & CROSS-REFERENCES 2

HM34Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

HM34CReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

HAZMAT per U.S. Government catalogAcquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is HM400A1AB?

HM400A1AB is a HYGROTHERMOGRAPH manufactured by VAISALA INC..

What parts can replace HM400A1AB?

There are 2 known substitutes for HM400A1AB: HM34, HM34C. Substitute compatibility should be verified for your specific system.

What is the NSN for HM400A1AB?

HM400A1AB is cataloged in the U.S. Government catalog under NSN 6685-01-443-4032. This indicates validated use in U.S. government and defense supply chains.

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HM400A1AB — HYGROTHERMOGRAPH

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