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R49A ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

FILTER,RESPIRATOR,AIR FILTERING. Key specifications include hazard_protection_feature: PAINT MIST, criticality_code_justification: FEAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-01-245-3331, 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
R49A
NSN: 4240-01-245-3331
FSC: 4240
CAGE: 02622 — AMERICAN OPTICAL CO (USA)
SPECIFICATIONS
special_featuresNIOSH APPROVAL NO. TC-23C-333; USED ON AMERICAN OPTICAL MODELS R/S4000,R/S5000,R/S6000 AND R/S7000 RESPIRATORS; SOLE SOURCE REQUIRED BY STATUTE 6.302
hazard_protection_featurePAINT MIST
criticality_code_justificationFEAT
NSN4240-01-245-3331
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RESPIRATOR,AIR FILTERING TITLE COMPONENT PN R49A MFR FILTER,RESPIRATOR,AIR
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
HAZARD PROTECTION FEATURE: PAINT MIST
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESNIOSH APPROVAL NO. TC-23C-333; USED ON AMERICAN OPTICAL MODELS R/S4000,R/S5000,R/S6000 AND R/S7000 RESPIRATORS; SOLE SOURCE REQUIRED BY STATUTE 6.302
HAZARD PROTECTION FEATUREPAINT MIST
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
NASM24692Interchangeable
interchangeable cross-reference
interchangeable
177010-21Interchangeable
interchangeable cross-reference
interchangeable
MS24692-133Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
1314Interchangeable
interchangeable cross-reference
interchangeable
2510 7/16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R49A?
R49A is a FILTER,RESPIRATOR,AIR FILTERING.
What parts can replace R49A?
There are 21 known substitutes for R49A: NASM24692, 177010-21, MS24692-133 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R49A?
R49A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-01-245-3331. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026