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Technical Data Sheet
PartsTable / COMPONENT / B640-138
B640-138 ✓ 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 AUTOCOUPLER,FEMALE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: 2.427 IN. O/A LG 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 2040-00-949-8446, 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
B640-138
NSN: 2040-00-949-8446
FSC: 2040
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
general_characteristics_item_description2.427 IN. O/A LG IN
NSN2040-00-949-8446
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available AUTOCOUPLER,FEMALE TITLE COMPONENT PN B640-138 MFR AUTOCOUPLER,FEMALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 2.427 IN. O/A LG IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTION2.427 IN. O/A LG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
L63-1Interchangeable
interchangeable cross-reference
interchangeable
000-229-1838Interchangeable
interchangeable cross-reference
interchangeable
LZ48-39Interchangeable
interchangeable cross-reference
interchangeable
010295Interchangeable
interchangeable cross-reference
interchangeable
02-0424Interchangeable
interchangeable cross-reference
interchangeable
01-295Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B640-138?
B640-138 is a AUTOCOUPLER,FEMALE.
What parts can replace B640-138?
There are 9 known substitutes for B640-138: L63-1, 000-229-1838, LZ48-39 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B640-138?
B640-138 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2040-00-949-8446. 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