PM21399-1 — GUARD,SWITCH

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

PM21399-1: GUARD,SWITCH.

The GUARD,SWITCH is a the manufacturer industrial component. Key specifications include design_form: PREBENT. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-976-1443, 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

PM21399-1

NSN: 5930-00-976-1443
FSC: 5930 — Switches
CAGE: 81579 — MASON ELECTRIC CO. DBA MASON CONTROLS (USA)

SPECIFICATIONS

design_form	PREBENT
NSN	5930-00-976-1443

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 1

21399-1Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 PM21399-1?

PM21399-1 is a GUARD,SWITCH.

What parts can replace PM21399-1?

There is 1 known substitute for PM21399-1: 21399-1. Substitute compatibility should be verified for your specific system.

What is the NSN for PM21399-1?

PM21399-1 is cataloged in the U.S. Government catalog under NSN 5930-00-976-1443. This indicates validated use in U.S. government and defense supply chains.

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PM21399-1 — GUARD,SWITCH

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