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B640-149 — AUTOCOUPLER,PERISCO

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B640-149: AUTOCOUPLER,PERISCO.

The AUTOCOUPLER,PERISCO is a the manufacturer industrial component. Key specifications include taper: 0.250 PER FOOT IN INCHES, material: STEEL OVERALL, grip_length: 1.000 INCHES NOMINAL IN, taper_length: 1.438 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2040-00-949-8433, 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
B640-149
NSN: 2040-00-949-8433
FSC: 2040 — Marine Hardware and Hull Items
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
taper0.250 PER FOOT IN INCHES
materialSTEEL OVERALL
grip_length1.000 INCHES NOMINAL IN
taper_length1.438 INCHES NOMINAL IN
thread_class2A A
thread_length0.438 INCHES NOMINAL IN
first_end_styleOVAL
second_end_styleOVAL
style_designatorTHREADED AT LARGE END
thread_directionRIGHT-HAND
first_end_locationTHREADED END
nominal_thread_size0.250 INCHES IN
NSN2040-00-949-8433
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available AUTOCOUPLER,PERISCO TITLE COMPONENT PN B640-149 MFR AUTOCOUPLER,PERISCO
SUBSTITUTES & CROSS-REFERENCES 1
010306Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is B640-149?
B640-149 is a AUTOCOUPLER,PERISCO.
What parts can replace B640-149?
There is 1 known substitute for B640-149: 010306. Substitute compatibility should be verified for your specific system.
What is the NSN for B640-149?
B640-149 is cataloged in the U.S. Government catalog under NSN 2040-00-949-8433. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.