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PartsTable / COMPONENT / 5303 1/4-28 UNF
5303 1/4-28 UNF ✓ 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 5303 1/4-28 UNF is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-01-246-0246, 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
5303 1/4-28 UNF
NSN: 5136-01-246-0246
FSC: 5136
CAGE: 60NQ9 — GREENFIELD INDUSTRIES INC (USA)
SPECIFICATIONS
Part Number5303 1/4-28 UNF
NSN5136-01-246-0246
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 5303 1/4-28 UNF TITLE COMPONENT PN 5303 1/4-28 UNF MFR 5303 1/4-28 UNF
KEY FEATURES
•
SPECIFICATION/STANDARD DATA: 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
THREAD STRUCTURE: REGULAR
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STARTING CHAMFER TYPE: BOTTOMING
•
WIDTH ACROSS FLATS: 0.191 INCHES NOMINAL IN
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FLUTE QUANTITY: 4
•
MATERIAL: STEEL OVERALL
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STYLE DESIGNATOR: STRAIGHT FLUTE
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.250-28 UNF
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
THREAD STRUCTUREREGULAR
STARTING CHAMFER TYPEBOTTOMING
WIDTH ACROSS FLATS0.191 INCHES NOMINAL IN
FLUTE QUANTITY4
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT FLUTE
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.250-28 UNF
LENGTH0.281 INCHES NOMINAL SQUARE END IN
THREAD FORMING METHODGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
14053Interchangeable
interchangeable cross-reference
interchangeable
3024893Interchangeable
interchangeable cross-reference
interchangeable
TM-301Interchangeable
interchangeable cross-reference
interchangeable
6403493-1Interchangeable
interchangeable cross-reference
interchangeable
F92I183Interchangeable
interchangeable cross-reference
interchangeable
ATCC 14053Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5303 1/4-28 UNF?
5303 1/4-28 UNF is a 5303 1/4-28 UNF.
What parts can replace 5303 1/4-28 UNF?
There are 14 known substitutes for 5303 1/4-28 UNF: 14053, 3024893, TM-301 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5303 1/4-28 UNF?
5303 1/4-28 UNF is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-01-246-0246. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026