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6303K57 — 6303K57

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

6303K57: 6303K57.

The 6303K57 is a the manufacturer industrial component. Key specifications include material: PLASTIC PHENOLIC AND STEEL, shank_style: STRAIGHT, shank_length: 3.125 INCHES NOMINAL IN, shank_diameter: 0.5 INCHES NOMINAL IN, inside_diameter: 0.5 INCHES NOMINAL IN, outside_diameter: 1.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5355-01-620-9206, 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
6303K57
NSN: 5355-01-620-9206
FSC: 5355 — Knobs and Pointers
CAGE: 07BY4 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialPLASTIC PHENOLIC AND STEEL
shank_styleSTRAIGHT
shank_length3.125 INCHES NOMINAL IN
shank_diameter0.5 INCHES NOMINAL IN
inside_diameter0.5 INCHES NOMINAL IN
outside_diameter1.375 INCHES NOMINAL IN
special_featuresKNOB HAS A TEMPERATURE RANGE OF -70 - 200 DEGREES F. SHAFT IS BLACK-OXIDE STEEL.
style_designatorBALL
nominal_thread_size0.375 INCHES STUD IN
thread_quantity_per_inch16 STUD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD
shaft_accommodation_styleROUND
NSN5355-01-620-9206
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 6303K57 TITLE COMPONENT PN 6303K57 MFR 6303K57
KEY FEATURES
•
SHANK DIAMETER: 0.5 INCHES NOMINAL IN
•
SHAFT ACCOMMODATION STYLE: ROUND
•
SHANK LENGTH: 3.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BALL
•
OUTSIDE DIAMETER: 1.375 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.375 INCHES STUD IN
•
INSIDE DIAMETER: 0.5 INCHES NOMINAL IN
•
SHANK STYLE: STRAIGHT
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.5 INCHES NOMINAL IN
SHAFT ACCOMMODATION STYLEROUND
SHANK LENGTH3.125 INCHES NOMINAL IN
STYLE DESIGNATORBALL
OUTSIDE DIAMETER1.375 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.375 INCHES STUD IN
INSIDE DIAMETER0.5 INCHES NOMINAL IN
SHANK STYLESTRAIGHT
COLORBLACK
SPECIAL FEATURESKNOB HAS A TEMPERATURE RANGE OF -70 - 200 DEGREES F. SHAFT IS BLACK-OXIDE STEEL.
OTHER ITEMS IN FSC 5355 — Knobs and Pointers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5355-00-000-5777 5355-00-001-2029 5355-00-001-2403 5355-00-001-4109 5355-00-001-4677 5355-00-001-4724 5355-00-001-4730 5355-00-001-4734
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6303K57?
6303K57 is a 6303K57.
What is the NSN for 6303K57?
6303K57 is cataloged in the U.S. Government catalog under NSN 5355-01-620-9206. 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.