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R53A ✓ 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

CARTRIDGE,RESPIRATOR,AIR FILTERI. Key specifications include hazard_protection_feature: ORGANIC VAPORS, 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 4240-01-245-3327, 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
R53A
NSN: 4240-01-245-3327
FSC: 4240
CAGE: 02622 — AMERICAN OPTICAL CO (USA)
SPECIFICATIONS
special_featuresUSED ON AMERICAN OPTICAL MODELS R/S4000,R/S5000,R/S6000 AND R/S7000 RESPIRATORS; NIOSH APPROVAL NO. TC-23C-343/344; SOLE SOURCE REQUIRED BY STATUTE 6.302
hazard_protection_featureORGANIC VAPORS
criticality_code_justificationFEAT
NSN4240-01-245-3327
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CARTRIDGE,RESPIRATOR,AIR FILTERI TITLE COMPONENT PN R53A MFR CARTRIDGE,RESPIRATOR,A
KEY FEATURES
•
HAZARD PROTECTION FEATURE: ORGANIC VAPORS
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS (FLIS)
HAZARD PROTECTION FEATUREORGANIC VAPORS
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESUSED ON AMERICAN OPTICAL MODELS R/S4000,R/S5000,R/S6000 AND R/S7000 RESPIRATORS; NIOSH APPROVAL NO. TC-23C-343/344; SOLE SOURCE REQUIRED BY STATUTE 6.302
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
0314 5262Interchangeable
interchangeable cross-reference
interchangeable
1786074Interchangeable
interchangeable cross-reference
interchangeable
LOCTITE MOLY DRY FILM LUBRICANTInterchangeable
interchangeable cross-reference
interchangeable
51161Interchangeable
interchangeable cross-reference
interchangeable
D2690Interchangeable
interchangeable cross-reference
interchangeable
HS-51026Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R53A?
R53A is a CARTRIDGE,RESPIRATOR,AIR FILTERI.
What parts can replace R53A?
There are 15 known substitutes for R53A: 0314 5262, 1786074, LOCTITE MOLY DRY FILM LUBRICANT and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R53A?
R53A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-01-245-3327. 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