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PartsTable / COMPONENT / 303 9/16-12 UNC
303 9/16-12 UNC ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The 303 9/16-12 UNC is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-528-2298, 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
303 9/16-12 UNC
NSN: 5136-00-528-2298
FSC: 5136
CAGE: 1NEX4 — KENNAMETAL INC. DIV KENNAMETAL INDUSTRIAL PRODUCTS GROUP (USA)
SPECIFICATIONS
Part Number303 9/16-12 UNC
NSN5136-00-528-2298
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 303 9/16-12 UNC TITLE COMPONENT PN 303 9/16-12 UNC MFR 303 9/16-12 UNC
KEY FEATURES
•
LENGTH: 0.500 INCHES NOMINAL SQUARE END IN
•
THREAD STRUCTURE: REGULAR
•
FLUTE QUANTITY: 4
•
STARTING CHAMFER TYPE: BOTTOMING
•
MATERIAL: STEEL OVERALL
•
SPECIFICATION/STANDARD DATA: 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
STYLE DESIGNATOR: STRAIGHT FLUTE
TECHNICAL CHARACTERISTICS (FLIS)
LENGTH0.500 INCHES NOMINAL SQUARE END IN
OVERALL LENGTH3.594 INCHES NOMINAL IN
THREAD STRUCTUREREGULAR
FLUTE QUANTITY4
STARTING CHAMFER TYPEBOTTOMING
MATERIALSTEEL OVERALL
SPECIFICATION/STANDARD DATA05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
STYLE DESIGNATORSTRAIGHT FLUTE
WIDTH ACROSS FLATS0.322 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.562-12 UNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
A37839Interchangeable
interchangeable cross-reference
interchangeable
17195Interchangeable
interchangeable cross-reference
interchangeable
PA5617Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
60-643Interchangeable
interchangeable cross-reference
interchangeable
1163-3-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 303 9/16-12 UNC?
303 9/16-12 UNC is a 303 9/16-12 UNC.
What parts can replace 303 9/16-12 UNC?
There are 26 known substitutes for 303 9/16-12 UNC: A37839, 17195, PA5617 and 23 more. Substitute compatibility should be verified for your specific system.
Is 303 9/16-12 UNC still available?
303 9/16-12 UNC is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026