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PartsTable / COMPONENT / MS21964-8
MS21964-8 ✓ 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 BUSHING ASSEMBLY,OXYGEN is a the manufacturer industrial component. Key specifications include fsc_application_data: AIRCRAFT OXYGEN SYSTEM, general_characteristics_item_description: BRASS,QQ-B-637,COMP 2,T 1/2 HARD,0.625 IN. ACROSS FLATS,0.484 IN.

H,0.063 IN. ID IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1660-00-063-6335, 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
MS21964-8
NSN: 1660-00-063-6335
FSC: 1660
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
fsc_application_dataAIRCRAFT OXYGEN SYSTEM
general_characteristics_item_descriptionBRASS,QQ-B-637,COMP 2,T 1/2 HARD,0.625 IN. ACROSS FLATS,0.484 IN. H,0.063 IN. ID IN
NSN1660-00-063-6335
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BUSHING ASSEMBLY,OXYGEN TITLE COMPONENT PN MS21964-8 MFR BUSHING ASSEMBLY,OXYGE
KEY FEATURES
•
FSC APPLICATION DATA: AIRCRAFT OXYGEN SYSTEM
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS,QQ-B-637,COMP 2,T 1/2 HARD,0.625 IN. ACROSS FLATS,0.484 IN. H,0.063 IN. ID IN
TECHNICAL CHARACTERISTICS (FLIS)
FSC APPLICATION DATAAIRCRAFT OXYGEN SYSTEM
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS,QQ-B-637,COMP 2,T 1/2 HARD,0.625 IN. ACROSS FLATS,0.484 IN. H,0.063 IN. ID IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
M7560/1-14Interchangeable
interchangeable cross-reference
interchangeable
MS21964-14Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-7560Interchangeable
interchangeable cross-reference
interchangeable
2385Interchangeable
interchangeable cross-reference
interchangeable
214-75Interchangeable
interchangeable cross-reference
interchangeable
8148650Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21964-8?
MS21964-8 is a BUSHING ASSEMBLY,OXYGEN.
What parts can replace MS21964-8?
There are 24 known substitutes for MS21964-8: M7560/1-14, MS21964-14, MIL-DTL-7560 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21964-8?
MS21964-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1660-00-063-6335. 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