PartsTable
Technical Data Sheet
Download PDF

RD21544 — END BELL,ELECTRICAL ROTATING EQU

✓ Government record, cited
HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC · MOTOR
PRODUCT OVERVIEW

RD21544: END BELL,ELECTRICAL ROTATING EQU.

END BELL,ELECTRICAL ROTATING EQU. Key specifications include MATERIAL: ALUMINUM ALLOY, OVERALL LENGTH: 0.469 INCHES NOMINAL IN, OVERALL DIAMETER: 3.485 INCHES NOMINAL IN, SURFACE TREATMENT: ANODIZE, MOUNTING CONFIGURATION: FOUR 0.152 IN. DIA MTG HOLES IRREGULARLY SPACED IN, ENVIRONMENTAL PROTECTION: EXPLOSION PROOF.

This part is cataloged in the U.S. Government catalog under NSN 6105-00-059-8877, 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
RD21544
NSN: 6105-00-059-8877
FSC: 6105 — Motors, Electrical
CAGE: 51663 — HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC (USA)
SPECIFICATIONS
MATERIALALUMINUM ALLOY
OVERALL LENGTH0.469 INCHES NOMINAL IN
OVERALL DIAMETER3.485 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE
MOUNTING CONFIGURATIONFOUR 0.152 IN. DIA MTG HOLES IRREGULARLY SPACED IN
ENVIRONMENTAL PROTECTIONEXPLOSION PROOF
NSN6105-00-059-8877
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: RD21544 · HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC ⚠ VERIFY BEFORE ORDERING NEMA frame size determines mounting bolt pattern — not interchangeable. 56C ≠ 143T bolt pattern. C-face vs foot-mount vs flange — different mounting, same HP doesn't mean drop-in ✓ BROKER TIP TEFC = outdoor/washdown OK. ODP = dry indoor only. TENV = no external fan, explosion-proof areas. 1750 RPM = 4-pole (most common), 3450 RPM = 2-pole, 1150 RPM = 6-pole PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL DIAMETER: 3.485 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE
•
ENVIRONMENTAL PROTECTION: EXPLOSION PROOF
•
MOUNTING CONFIGURATION: FOUR 0.152 IN. DIA MTG HOLES IRREGULARLY SPACED IN
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER3.485 INCHES NOMINAL IN
OVERALL LENGTH0.469 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE
ENVIRONMENTAL PROTECTIONEXPLOSION PROOF
MOUNTING CONFIGURATIONFOUR 0.152 IN. DIA MTG HOLES IRREGULARLY SPACED IN
MATERIALALUMINUM ALLOY
OTHER ITEMS IN FSC 6105 — Motors, Electrical
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6105-00-001-1471 6105-00-001-1473 6105-00-001-1497 6105-00-001-1710 6105-00-001-1712 6105-00-001-2097 6105-00-001-2098 6105-00-001-3680
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
Ready to buy RD21544?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is RD21544?
RD21544 is a END BELL,ELECTRICAL ROTATING EQU manufactured by HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC.
What is the NSN for RD21544?
RD21544 is cataloged in the U.S. Government catalog under NSN 6105-00-059-8877. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — RD21544

✓ 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.