B139-643 — B139-643

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

B139-643: B139-643.

The B139-643 is a the manufacturer industrial component. Key specifications include terminal_type: WIRE LEAD, mounting_method: BUSHING, special_features: PORT SIZE 0.75 IN.;FLOW AT 0.5 GPM IN, media_for_which_designed: LIQUID, criticality_code_justification: FEAT, nonpile-up_contact_arrangement: 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION. This part is cataloged in the U.S.

Government catalog under NSN 6625-01-078-6834, 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

MRO→ MRO_GENERAL→ B139-643

NSN: 6625-01-078-6834
FSC: 6625 — Electrical and Electronic Properties Measuring and Testing Instruments
CAGE: 93459 — SPECTRUM CONTROL INC DIV WEINSCHEL (USA)

SPECIFICATIONS

terminal_type	WIRE LEAD
mounting_method	BUSHING
special_features	PORT SIZE 0.75 IN.;FLOW AT 0.5 GPM IN
media_for_which_designed	LIQUID
criticality_code_justification	FEAT
nonpile-up_contact_arrangement	1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
NSN	6625-01-078-6834

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 1

139-643Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B139-643?

B139-643 is a B139-643. It is classified as a MRO (MRO_GENERAL).

What parts can replace B139-643?

There is 1 known substitute for B139-643: 139-643. Substitute compatibility should be verified for your specific system.

What is the NSN for B139-643?

B139-643 is cataloged in the U.S. Government catalog under NSN 6625-01-078-6834. This indicates validated use in U.S. government and defense supply chains.

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