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PartsTable / COMPONENT / 303 3/8-16 UNC
303 3/8-16 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 3/8-16 UNC is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-528-2295, 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 3/8-16 UNC
NSN: 5136-00-528-2295
FSC: 5136
CAGE: 1NEX4 — KENNAMETAL INC. DIV KENNAMETAL INDUSTRIAL PRODUCTS GROUP (USA)
SPECIFICATIONS
Part Number303 3/8-16 UNC
NSN5136-00-528-2295
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 303 3/8-16 UNC TITLE COMPONENT PN 303 3/8-16 UNC MFR 303 3/8-16 UNC
KEY FEATURES
•
THREAD PITCH DIAMETERS: +0.3349 TO 0.3369 INCHES IN
•
MATERIAL: STEEL OVERALL
•
FLUTE QUANTITY: 4
•
WIDTH ACROSS FLATS: 0.286 INCHES NOMINAL IN
•
THREAD STRUCTURE: REGULAR
•
LENGTH: 0.438 INCHES NOMINAL SQUARE END IN
•
STARTING CHAMFER TYPE: BOTTOMING
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.375-16 UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
THREAD PITCH DIAMETERS+0.3349 TO 0.3369 INCHES IN
MATERIALSTEEL OVERALL
FLUTE QUANTITY4
WIDTH ACROSS FLATS0.286 INCHES NOMINAL IN
THREAD STRUCTUREREGULAR
LENGTH0.438 INCHES NOMINAL SQUARE END IN
STARTING CHAMFER TYPEBOTTOMING
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.375-16 UNIFIED NATIONAL COARSE (UNC)
OVERALL LENGTH2.938 INCHES NOMINAL IN
THREAD FORMING METHODCUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
GGG-T-60 TY1SEAST3Interchangeable
interchangeable cross-reference
interchangeable
GGG-T-60Interchangeable
interchangeable cross-reference
interchangeable
303Interchangeable
interchangeable cross-reference
interchangeable
1-717-1Interchangeable
interchangeable cross-reference
interchangeable
C62269Interchangeable
interchangeable cross-reference
interchangeable
1040Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 303 3/8-16 UNC?
303 3/8-16 UNC is a 303 3/8-16 UNC.
What parts can replace 303 3/8-16 UNC?
There are 26 known substitutes for 303 3/8-16 UNC: GGG-T-60 TY1SEAST3, GGG-T-60, 303 and 23 more. Substitute compatibility should be verified for your specific system.
Is 303 3/8-16 UNC still available?
303 3/8-16 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