021487 — Technical Data Sheet

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— · 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 LOUDSPEAKER,PERMANENT MAGNET is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2990-00-358-4680, 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

021487

NSN: 2990-00-358-4680
FSC: 2990
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)

SPECIFICATIONS

Part Number	021487
NSN	2990-00-358-4680

COMPONENT DIAGRAM

KEY FEATURES

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GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,CIRCULAR DISK TYPE,10 STEEL BALLS,BALLS ARE CAPTIVATED IN A STEEL RETAINER,4 IN. OD,DRIVE SHAFT PROTRUDES 1-5/8 IN. FROM DISK,1/2 IN. DIA. END TO 1/2 FROM END ON SHAFT,1-1/8 LG OF 15/32 IN. DIA.,THE DIA RETURNS T0 1/2 IN.FOR THE RAMAINING 3/8 IN. LOCATED INSIDE OF CAVITY,2-9/16 IN. O/A H,4 IN. LARGESTED OD IN

TECHNICAL CHARACTERISTICS (FLIS)

GENERAL CHARACTERISTICS ITEM DESCRIPTION

STEEL,CIRCULAR DISK TYPE,10 STEEL BALLS,BALLS ARE CAPTIVATED IN A STEEL RETAINER,4 IN. OD,DRIVE SHAFT PROTRUDES 1-5/8 IN. FROM DISK,1/2 IN. DIA. END TO 1/2 FROM END ON SHAFT,1-1/8 LG OF 15/32 IN. DIA.,THE DIA RETURNS T0 1/2 IN.FOR THE RAMAINING 3/8 IN. LOCATED INSIDE OF CAVITY,2-9/16 IN. O/A H,4 IN. LARGESTED OD IN

VERIFIED SUBSTITUTES & CROSS-REFERENCES 16

21487Interchangeable