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4B1443 — BUTTON

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4B1443: BUTTON.

The BUTTON is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL;0.570 IN. O/A LG;0.375 IN.

BODY 0D;0.703 IN. FLANGE OD;0.281 IN. FLANGE THK IN.

This part is cataloged in the U.S. Government catalog under NSN 2990-00-367-4392, 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
4B1443
NSN: 2990-00-367-4392
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL;0.570 IN. O/A LG;0.375 IN. BODY 0D;0.703 IN. FLANGE OD;0.281 IN. FLANGE THK IN
NSN2990-00-367-4392
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BUTTON TITLE COMPONENT PN 4B1443 MFR BUTTON
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL;0.570 IN. O/A LG;0.375 IN. BODY 0D;0.703 IN. FLANGE OD;0.281 IN. FLANGE THK IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL;0.570 IN. O/A LG;0.375 IN. BODY 0D;0.703 IN. FLANGE OD;0.281 IN. FLANGE THK IN
OTHER ITEMS IN FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2990-00-001-0001 2990-00-001-1248 2990-00-001-1250 2990-00-001-2055 2990-00-001-3498 2990-00-001-3520 2990-00-001-3521 2990-00-001-3522
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4B1443?
4B1443 is a BUTTON.
What is the NSN for 4B1443?
4B1443 is cataloged in the U.S. Government catalog under NSN 2990-00-367-4392. 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.