21M — BIT,MOUTHPIECE,BREATHING APPARAT

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

21M: BIT,MOUTHPIECE,BREATHING APPARAT.

BIT,MOUTHPIECE,BREATHING APPARAT. Key specifications include part_name_assigned_by_controlling_agency: MOUTHPIECE. This part is cataloged in the U.S.

Government catalog under NSN 4240-01-329-3192, 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

21M

NSN: 4240-01-329-3192
FSC: 4240 — Safety and Rescue Equipment
CAGE: 49537 — SUBMERSIBLE SYSTEMS, INC. (USA)

SPECIFICATIONS

part_name_assigned_by_controlling_agency	MOUTHPIECE
NSN	4240-01-329-3192

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 1

021MReference document

Same NSN cross-reference

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

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 21M?

21M is a BIT,MOUTHPIECE,BREATHING APPARAT.

What parts can replace 21M?

There is 1 known substitute for 21M: 021M. Substitute compatibility should be verified for your specific system.

What is the NSN for 21M?

21M is cataloged in the U.S. Government catalog under NSN 4240-01-329-3192. This indicates validated use in U.S. government and defense supply chains.

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21M — BIT,MOUTHPIECE,BREATHING APPARAT

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