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PartsTable / COMPONENT / 5303 1/4-20 UNC
5303 1/4-20 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 5303 1/4-20 UNC 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 5136-01-246-0245, 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 1/4-20 UNC
NSN: 5136-01-246-0245
FSC: 5136
CAGE: 60NQ9 — GREENFIELD INDUSTRIES INC (USA)
SPECIFICATIONS
Part Number5303 1/4-20 UNC
NSN5136-01-246-0245
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 5303 1/4-20 UNC TITLE COMPONENT PN 5303 1/4-20 UNC MFR 5303 1/4-20 UNC
KEY FEATURES
•
STYLE DESIGNATOR: STRAIGHT FLUTE
•
THREAD STRUCTURE: REGULAR
•
SPECIFICATION/STANDARD DATA: 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
STARTING CHAMFER TYPE: TAPER
•
LENGTH: 0.281 INCHES NOMINAL SQUARE END IN
•
THREAD FORMING METHOD: GROUND
•
FLUTE QUANTITY: 4
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSTRAIGHT FLUTE
THREAD STRUCTUREREGULAR
SPECIFICATION/STANDARD DATA05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
STARTING CHAMFER TYPETAPER
LENGTH0.281 INCHES NOMINAL SQUARE END IN
THREAD FORMING METHODGROUND
OVERALL LENGTH2.500 INCHES NOMINAL IN
FLUTE QUANTITY4
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.250-20 UNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.191 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
10367919Interchangeable
interchangeable cross-reference
interchangeable
233023Interchangeable
interchangeable cross-reference
interchangeable
LU. FORM. 8249Interchangeable
interchangeable cross-reference
interchangeable
94-32271Interchangeable
interchangeable cross-reference
interchangeable
ACM5Interchangeable
interchangeable cross-reference
interchangeable
1401-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5303 1/4-20 UNC?
5303 1/4-20 UNC is a 5303 1/4-20 UNC.
What parts can replace 5303 1/4-20 UNC?
There are 25 known substitutes for 5303 1/4-20 UNC: 10367919, 233023, LU. FORM. 8249 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5303 1/4-20 UNC?
5303 1/4-20 UNC is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-01-246-0245. 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