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66973 — COVER,IDLER GEAR

✓ Government record, cited
— · MOTOR
PRODUCT OVERVIEW

66973: COVER,IDLER GEAR.

The COVER,IDLER GEAR is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 6105-00-125-9394, 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
66973
NSN: 6105-00-125-9394
NIINs: 001259394, 003744307
FSC: 6105 — Motors, Electrical
CAGE: 93835 — PARKER HANNIFIN CORPORATION DIV HYDRAULIC SYSTEMS DIVISION (USA)
SPECIFICATIONS
general_characteristics_item_description2.125 IN.O/A H,1.359 IN.DIA DRILL,1.562 IN.DEEP,1.375 IN.REAM,1.375 IN.DEEP,3 HOLES,0.406 IN.DIA DRILL,1.000 IN.DIA SPOTFACE IN
NSN6105-00-125-9394
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: 66973 · OEM ⚠ 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
SUBSTITUTES & CROSS-REFERENCES 1
443MC18Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 66973?
66973 is a COVER,IDLER GEAR.
What parts can replace 66973?
There is 1 known substitute for 66973: 443MC18. Substitute compatibility should be verified for your specific system.
What is the NSN for 66973?
66973 is cataloged in the U.S. Government catalog under NSN 6105-00-125-9394. 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.