PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 66A
66A ✓ 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 COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, overall_length: 2.380 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT ALL ENDS, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF, features_provided: SELF-SEALING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6630-00-399-2975, 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
66A
NSN: 6630-00-399-2975
FSC: 6630
CAGE: 27847 — UNICONTROL INC HAYS CLEVELAND DIV (USA)
SPECIFICATIONS
materialSTEEL BODY
overall_length2.380 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
nominal_thread_size0.750 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorNPT ALL ENDS
quick_disconnect_nominal_size0.750 INCHES ALL ENDS IN
NSN6630-00-399-2975
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLING HALF,QUICK DISCONNECT TITLE COMPONENT PN 66A MFR COUPLING HALF,QUICK DI
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
1000GInterchangeable
interchangeable cross-reference
interchangeable
00GInterchangeable
interchangeable cross-reference
interchangeable
20GInterchangeable
interchangeable cross-reference
interchangeable
GGG-S-745Interchangeable
interchangeable cross-reference
interchangeable
56Interchangeable
interchangeable cross-reference
interchangeable
66AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 66A?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 66A?
66A is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 66A?
There are 17 known substitutes for 66A: 1000G, 00G, 20G and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66A?
66A is cataloged in the Federal Logistics Information System (FLIS) under NSN 6630-00-399-2975. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 66A

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026