21-742 — SWITCH,LOCK

✓ Government record, cited

Clementoni · MRO · MRO_GENERAL

PRODUCT OVERVIEW

21-742: SWITCH,LOCK.

The SWITCH,LOCK is a Clementoni industrial component. Key specifications include inclosure_type: FULLY INCLOSED, nominal_thread_size: 0.750 INCHES IN, thread_quantity_per_inch: 27, thread_series_designator: UNS, terminal_type_and_quantity: 2 TAB W/SCREW, nonpile-up_contact_arrangement: 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-086-9714, 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→ 21-742

NSN: 3040-00-086-9714
NIINs: 000869714, 006235409, 008744568, 012063274, 012636304
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)

SPECIFICATIONS

inclosure_type	FULLY INCLOSED
nominal_thread_size	0.750 INCHES IN
thread_quantity_per_inch	27
thread_series_designator	UNS
terminal_type_and_quantity	2 TAB W/SCREW
nonpile-up_contact_arrangement	1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
maximum_voltage_rating_in_volts	120.0 AC AND 10.0 DC
contact_load_current_rating_at_maximum_rated_voltage	10.000 AMPERES RESISTIVE DC AND 10.000 AMPERES RESISTIVE AC
NSN	3040-00-086-9714

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 2

B554-54Reference document

Same NSN cross-reference

Reference document — Secondary reference

554B021742Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation

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FREQUENTLY ASKED QUESTIONS

What is 21-742?

21-742 is a SWITCH,LOCK manufactured by Clementoni. It is classified as a MRO (MRO_GENERAL).

What parts can replace 21-742?

There are 2 known substitutes for 21-742: B554-54, 554B021742. Substitute compatibility should be verified for your specific system.

What is the NSN for 21-742?

21-742 is cataloged in the U.S. Government catalog under NSN 3040-00-086-9714. This indicates validated use in U.S. government and defense supply chains.

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21-742 — SWITCH,LOCK

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