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BT101 ✓ 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

The HOSE,AIR DUCT,AIR BREATHING is a the manufacturer industrial component. Key specifications include end_item_identification: RESPIRATOR, E.D. BULLARD COMPANY, SERIES M45.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-01-421-3667, 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
BT101
NSN: 4240-01-421-3667
FSC: 4240
CAGE: 09729 — E. D. BULLARD COMPANY DBA ED BULLARD CO (USA)
SPECIFICATIONS
special_features0.250 IN. SCHRADER FITTING; BREATHING TUBE WITH ADJUSTABLE FLOW VALVE; SOLE SOURCE REQUIRED BY STATUTE 6.302; COMPONENT OF NIOSH APPROVAL TC-19C-322 AND 321 IN
end_item_identificationRESPIRATOR, E.D. BULLARD COMPANY, SERIES M45
NSN4240-01-421-3667
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HOSE,AIR DUCT,AIR BREATHING TITLE COMPONENT PN BT101 MFR HOSE,AIR DUCT,AIR BREA
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONRESPIRATOR, E.D. BULLARD COMPANY, SERIES M45
SPECIAL FEATURES0.250 IN. SCHRADER FITTING; BREATHING TUBE WITH ADJUSTABLE FLOW VALVE; SOLE SOURCE REQUIRED BY STATUTE 6.302; COMPONENT OF NIOSH APPROVAL TC-19C-322 AND 321 IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
A-A-52198Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-1771Interchangeable
interchangeable cross-reference
interchangeable
B101Interchangeable
interchangeable cross-reference
interchangeable
1101804Interchangeable
interchangeable cross-reference
interchangeable
CB8003-00-0001Interchangeable
interchangeable cross-reference
interchangeable
B202Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BT101?
BT101 is a HOSE,AIR DUCT,AIR BREATHING.
What parts can replace BT101?
There are 13 known substitutes for BT101: A-A-52198, MIL-B-1771, B101 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BT101?
BT101 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-01-421-3667. 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