BB-21-19 — SIGNAL ASSEMBLY,SWITCHBOARD

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

BB-21-19: SIGNAL ASSEMBLY,SWITCHBOARD.

The SIGNAL ASSEMBLY,SWITCHBOARD is a the manufacturer industrial component. Key specifications include spout: NOT INCLUDED, end_type: GLAND NUT W/INTERNAL THREAD FIRST END, material: PLASTIC PHENOLIC BOARD, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, base_style: MEDIUM PREFOCUS, body_style: BARRIER TYPE. This part is cataloged in the U.S.

Government catalog under NSN 2520-00-734-2433, 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

BB-21-19

NSN: 2520-00-734-2433
NIINs: 007342433, 015693182
FSC: 2520 — Vehicular Power Transmission Components
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)

SPECIFICATIONS

spout	NOT INCLUDED
end_type	GLAND NUT W/INTERNAL THREAD FIRST END
material	PLASTIC PHENOLIC BOARD
end_style	SPRING END,SQUARED AND GROUND BOTH ENDS
base_style	MEDIUM PREFOCUS
body_style	BARRIER TYPE
bulb_style	T (TUBULAR)
flange_width	0.125 INCHES NOMINAL IN
power_rating	1.5 WATTS AVERAGE
thread_class	2B
bore_diameter	0.3750 INCHES NOMINAL IN
coil_quantity	8
NSN	2520-00-734-2433

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 3

7342433Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

3421Reference document

Same NSN cross-reference

Reference document — Secondary reference

203421Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is BB-21-19?

BB-21-19 is a SIGNAL ASSEMBLY,SWITCHBOARD.

What parts can replace BB-21-19?

There are 3 known substitutes for BB-21-19: 7342433, 3421, 203421. Substitute compatibility should be verified for your specific system.

What is the NSN for BB-21-19?

BB-21-19 is cataloged in the U.S. Government catalog under NSN 2520-00-734-2433. This indicates validated use in U.S. government and defense supply chains.

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