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PartsTable / COMPONENT / C55028
C55028 ✓ 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 TAP,THREAD CUTTING is a the manufacturer industrial component. Key specifications include length: 1.062 INCHES NOMINAL SQUARE END IN, material: STEEL OVERALL, thread_length: 3.000 INCHES NOMINAL IN, overall_length: 6.062 INCHES NOMINAL IN, shank_diameter: 1.108 INCHES NOMINAL IN, style_designator: STRAIGHT FLUTE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-889-6621, 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
C55028
NSN: 5136-00-889-6621
FSC: 5136
CAGE: 60NQ9 — GREENFIELD INDUSTRIES INC (USA)
SPECIFICATIONS
length1.062 INCHES NOMINAL SQUARE END IN
materialSTEEL OVERALL
thread_length3.000 INCHES NOMINAL IN
flute_quantity4
overall_length6.062 INCHES NOMINAL IN
shank_diameter1.108 INCHES NOMINAL IN
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.831 INCHES NOMINAL IN
starting_chamfer_typePLUG
thread_forming_methodGROUND
NSN5136-00-889-6621
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TAP,THREAD CUTTING TITLE COMPONENT PN C55028 MFR TAP,THREAD CUTTING
KEY FEATURES
•
SHANK DIAMETER: 1.108 INCHES NOMINAL IN
•
LENGTH: 1.062 INCHES NOMINAL SQUARE END IN
•
MATERIAL: STEEL OVERALL
•
THREAD STRUCTURE: REGULAR
•
THREAD FORMING METHOD: GROUND
•
WIDTH ACROSS FLATS: 0.831 INCHES NOMINAL IN
•
FLUTE QUANTITY: 4
TECHNICAL CHARACTERISTICS (FLIS)
SHANK DIAMETER1.108 INCHES NOMINAL IN
OVERALL LENGTH6.062 INCHES NOMINAL IN
LENGTH1.062 INCHES NOMINAL SQUARE END IN
MATERIALSTEEL OVERALL
THREAD STRUCTUREREGULAR
THREAD FORMING METHODGROUND
WIDTH ACROSS FLATS0.831 INCHES NOMINAL IN
FLUTE QUANTITY4
STARTING CHAMFER TYPEPLUG
STYLE DESIGNATORSTRAIGHT FLUTE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
SF-42Interchangeable
interchangeable cross-reference
interchangeable
73409Interchangeable
interchangeable cross-reference
interchangeable
H1Interchangeable
interchangeable cross-reference
interchangeable
14633Interchangeable
interchangeable cross-reference
interchangeable
14633-2AInterchangeable
interchangeable cross-reference
interchangeable
BR99175Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C55028?
C55028 is a TAP,THREAD CUTTING.
What parts can replace C55028?
There are 27 known substitutes for C55028: SF-42, 73409, H1 and 24 more. Substitute compatibility should be verified for your specific system.
Is C55028 still available?
C55028 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