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MR1143 — MOTOR,ALTERNATING CURRENT

✓ Government record, cited
MIL SPEC INC DBA MIL SPEC, INC · MOTOR
PRODUCT OVERVIEW

MR1143: MOTOR,ALTERNATING CURRENT.

The MOTOR,ALTERNATING CURRENT is a MIL SPEC INC DBA MIL SPEC, INC industrial component. Key specifications include PART NAME ASSIGNED BY CONTROLLING AGENCY: MOTOR,ALTERNATING CURRENT. This part is cataloged in the U.S.

Government catalog under NSN 6105-01-674-1689, 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
MR1143
NSN: 6105-01-674-1689
FSC: 6105 — Motors, Electrical
CAGE: 57368 — MIL SPEC INC DBA MIL SPEC, INC (USA)
SPECIFICATIONS
PART NAME ASSIGNED BY CONTROLLING AGENCYMOTOR,ALTERNATING CURRENT
NSN6105-01-674-1689
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: MR1143 · MIL SPEC INC DBA MIL SPEC, INC ⚠ 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
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYMOTOR,ALTERNATING CURRENT
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 3
15D1002 REV AReference document
Same NSN cross-reference
Reference document — Secondary reference
AV8221 ITEM 5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AV8220 ITEM 5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MR1143?
MR1143 is a MOTOR,ALTERNATING CURRENT manufactured by MIL SPEC INC DBA MIL SPEC, INC.
What parts can replace MR1143?
There are 3 known substitutes for MR1143: 15D1002 REV A, AV8221 ITEM 5, AV8220 ITEM 5. Substitute compatibility should be verified for your specific system.
What is the NSN for MR1143?
MR1143 is cataloged in the U.S. Government catalog under NSN 6105-01-674-1689. This indicates validated use in U.S. government and defense supply chains.
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