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51A — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

51A: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include phase: THREE, bed_type: SOLID, material: PLASTIC LENS, body_width: 1.220 INCHES MAXIMUM IN, body_height: 0.620 INCHES MAXIMUM IN, body_length: 1.820 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3220-00-249-0919, 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
51A
NSN: 3220-00-249-0919
NIINs: 002490919, 003187162, 005290352, 008975856, 011107687, 011570354
FSC: 3220 — Woodworking Machines
CAGE: 44769 — OLIVER MACHINERY CO (USA)
SPECIFICATIONS
phaseTHREE
bed_typeSOLID
materialPLASTIC LENS
body_width1.220 INCHES MAXIMUM IN
body_height0.620 INCHES MAXIMUM IN
body_length1.820 INCHES MAXIMUM IN
current_typeAC
flange_width0.250 INCHES NOMINAL IN
power_sourceELECTRIC MOTOR
mounting_typeFLOOR
nominal_width0.500 INCHES IN
overall_height1.250 INCHES NOMINAL IN
NSN3220-00-249-0919
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAP,PROTECTIVE,DUST AND MOISTURE TITLE COMPONENT PN 51A MFR CAP,PROTECTIVE,DUST AN
KEY FEATURES
•
PHASE: THREE
•
FREQUENCY IN HERTZ: 60.0
•
CURRENT TYPE: AC
•
RATED SWING OVER SOLID BED: 12.000 INCHES NOMINAL IN
•
HEADSTOCK FACEPLATE/CHUCK ATTACHMENT METHOD: SPINDLE THREADED
•
BED TYPE: SOLID
•
POWER SOURCE: ELECTRIC MOTOR
•
HEADSTOCK SPINDLE NOSE TAPER SIZE DESIGNATOR: 2 MORSE
TECHNICAL CHARACTERISTICS
PHASETHREE
FREQUENCY IN HERTZ60.0
CURRENT TYPEAC
RATED SWING OVER SOLID BED12.000 INCHES NOMINAL IN
HEADSTOCK FACEPLATE/CHUCK ATTACHMENT METHODSPINDLE THREADED
BED TYPESOLID
POWER SOURCEELECTRIC MOTOR
HEADSTOCK SPINDLE NOSE TAPER SIZE DESIGNATOR2 MORSE
HEADSTOCK DRIVE TYPEDIRECT MOTOR HEAD
VOLTAGE IN VOLTS220.0
SUBSTITUTES & CROSS-REFERENCES 1
MIL-L-80081Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· 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 51A?
51A is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 51A?
There is 1 known substitute for 51A: MIL-L-80081. Substitute compatibility should be verified for your specific system.
What is the NSN for 51A?
51A is cataloged in the U.S. Government catalog under NSN 3220-00-249-0919. 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.