6720ITEM21 — TIMER,INTERVAL

✓ Government record, cited

HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC · COMPONENT

PRODUCT OVERVIEW

6720ITEM21: TIMER,INTERVAL.

The TIMER,INTERVAL is a HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC industrial component. Key specifications include RESET TYPE: MANUAL, TIMER TYPE: MECHANICAL, FURNISHED ITEMS: AUTOMATIC ELECTRIC CIRCUIT CONTROL SWITCH, SPECIAL FEATURES: COUNTDOWN TIMER;SETABLE., END ITEM IDENTIFICATION: STARTEGIC SEALIFT CONVERSION SHIPS CLASS;ELECTRICAL PANEL ASSY.. This part is cataloged in the U.S.

Government catalog under NSN 6645-01-431-3602, 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

6720ITEM21

NSN: 6645-01-431-3602
FSC: 6645 — Time Measuring Instruments
CAGE: 22501 — HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC (USA)

SPECIFICATIONS

RESET TYPE	MANUAL
TIMER TYPE	MECHANICAL
FURNISHED ITEMS	AUTOMATIC ELECTRIC CIRCUIT CONTROL SWITCH
SPECIAL FEATURES	COUNTDOWN TIMER;SETABLE.
END ITEM IDENTIFICATION	STARTEGIC SEALIFT CONVERSION SHIPS CLASS;ELECTRICAL PANEL ASSY.
NSN	6645-01-431-3602

COMPONENT DIAGRAM

KEY FEATURES

•

RESET TYPE: MANUAL

•

TIMER TYPE: MECHANICAL

•

FURNISHED ITEMS: AUTOMATIC ELECTRIC CIRCUIT CONTROL SWITCH

TECHNICAL CHARACTERISTICS

RESET TYPE	MANUAL
TIMER TYPE	MECHANICAL
SPECIAL FEATURES	COUNTDOWN TIMER;SETABLE.
END ITEM IDENTIFICATION	STARTEGIC SEALIFT CONVERSION SHIPS CLASS;ELECTRICAL PANEL ASSY.
FURNISHED ITEMS	AUTOMATIC ELECTRIC CIRCUIT CONTROL SWITCH

OTHER ITEMS IN FSC 6645 — Time Measuring Instruments

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

6645-00-001-1256 6645-00-001-4498 6645-00-001-4584 6645-00-001-9400 6645-00-003-0327 6645-00-003-0328 6645-00-003-0337 6645-00-003-0338

SUBSTITUTES & CROSS-REFERENCES 2

6556B-02Reference document

Same NSN cross-reference

Reference document — Secondary reference

AB4 6A6Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusActive· U.S. Government catalog

HAZMAT per U.S. Government catalogAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 6720ITEM21?

6720ITEM21 is a TIMER,INTERVAL manufactured by HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC.

What parts can replace 6720ITEM21?

There are 2 known substitutes for 6720ITEM21: 6556B-02, AB4 6A6. Substitute compatibility should be verified for your specific system.

What is the NSN for 6720ITEM21?

6720ITEM21 is cataloged in the U.S. Government catalog under NSN 6645-01-431-3602. This indicates validated use in U.S. government and defense supply chains.

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