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M157A — FILTER ELEMENT,INLET,RESPIRATOR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

M157A: FILTER ELEMENT,INLET,RESPIRATOR.

FILTER ELEMENT,INLET,RESPIRATOR. Key specifications include special_features: SOLE SOURCE REQUIRED BY STATUTE 6.302, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 4240-01-357-6886, 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
M157A
NSN: 4240-01-357-6886
FSC: 4240 — Safety and Rescue Equipment
CAGE: 56434 — SURVIVAIR CORP SUB OF COMASEC INC (USA)
SPECIFICATIONS
special_featuresSOLE SOURCE REQUIRED BY STATUTE 6.302
criticality_code_justificationFEAT
NSN4240-01-357-6886
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER ELEMENT,INLET,RESPIRATOR TITLE COMPONENT PN M157A MFR FILTER ELEMENT,INLET,R
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESSOLE SOURCE REQUIRED BY STATUTE 6.302
OTHER ITEMS IN FSC 4240 — Safety and Rescue Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4240-00-001-1515 4240-00-001-2684 4240-00-006-0022 4240-00-007-4576 4240-00-007-8182 4240-00-007-8183 4240-00-007-8184 4240-00-007-8185
SUBSTITUTES & CROSS-REFERENCES 1
14810136Reference 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 M157A?
M157A is a FILTER ELEMENT,INLET,RESPIRATOR.
What parts can replace M157A?
There is 1 known substitute for M157A: 14810136. Substitute compatibility should be verified for your specific system.
What is the NSN for M157A?
M157A is cataloged in the U.S. Government catalog under NSN 4240-01-357-6886. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.