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5ATL 21MM — PLATE,MOUNTING,ANTENNA COVER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

5ATL 21MM: PLATE,MOUNTING,ANTENNA COVER.

The PLATE,MOUNTING,ANTENNA COVER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, point_type: CONVENTIONAL, point_angle: 118.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND, flute_length: 156.0 MILLIMETERS NOMINAL MM, overall_length: 254.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5133-01-120-3523, 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
5ATL 21MM
NSN: 5133-01-120-3523
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
CAGE: 16568 — PRECISION TWIST DRILL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
point_typeCONVENTIONAL
point_angle118.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length156.0 MILLIMETERS NOMINAL MM
flute_quantity2
overall_length254.0 MILLIMETERS NOMINAL MM
shank_diameter21.0 MILLIMETERS NOMINAL MM
special_featuresTAPER LG
cutting_end_styleGENERAL PURPOSE
nominal_cutting_diameter21.0 MILLIMETERS MM
cutting_rotation_directionRIGHT-HAND
NSN5133-01-120-3523
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PLATE,MOUNTING,ANTENNA COVER TITLE COMPONENT PN 5ATL 21MM MFR PLATE,MOUNTING,ANTENNA
KEY FEATURES
•
SHANK DIAMETER: 21.0 MILLIMETERS NOMINAL MM
•
CUTTING END STYLE: GENERAL PURPOSE
•
FLUTE LENGTH: 156.0 MILLIMETERS NOMINAL MM
•
NOMINAL CUTTING DIAMETER: 21.0 MILLIMETERS MM
•
CUTTING ROTATION DIRECTION: RIGHT-HAND
•
SPECIFICATION/STANDARD DATA: 05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SHANK STYLE: STRAIGHT ROUND
TECHNICAL CHARACTERISTICS
SHANK DIAMETER21.0 MILLIMETERS NOMINAL MM
CUTTING END STYLEGENERAL PURPOSE
FLUTE LENGTH156.0 MILLIMETERS NOMINAL MM
OVERALL LENGTH254.0 MILLIMETERS NOMINAL MM
NOMINAL CUTTING DIAMETER21.0 MILLIMETERS MM
CUTTING ROTATION DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SHANK STYLESTRAIGHT ROUND
FLUTE QUANTITY2
SPECIAL FEATURESTAPER LG
SUBSTITUTES & CROSS-REFERENCES 2
B94.11MReference document
Same NSN cross-reference
Reference document — Design control — primary reference
57210Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 5ATL 21MM?
5ATL 21MM is a PLATE,MOUNTING,ANTENNA COVER.
What parts can replace 5ATL 21MM?
There are 2 known substitutes for 5ATL 21MM: B94.11M, 57210. Substitute compatibility should be verified for your specific system.
What is the NSN for 5ATL 21MM?
5ATL 21MM is cataloged in the U.S. Government catalog under NSN 5133-01-120-3523. 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.