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3R124 ✓ 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 PUNCH,STARTER is a the manufacturer industrial component. Key specifications include material: STEEL, point_size: 0.250 INCHES IN, shank_shape: HEXAGON, overall_length: 6.500 INCHES NOMINAL IN, shank_width_across_flats: 0.500 INCHES NOMINAL IN, nondefinitive_spec/std_data: 2 TYPE AND 8 CLASS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-399-9940, 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
3R124
NSN: 5120-01-399-9940
FSC: 5120
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
materialSTEEL
point_size0.250 INCHES IN
shank_shapeHEXAGON
overall_length6.500 INCHES NOMINAL IN
shank_width_across_flats0.500 INCHES NOMINAL IN
nondefinitive_spec/std_data2 TYPE AND 8 CLASS
specification/standard_data05047-ASME B107.410 CAT 48 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5120-01-399-9940
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PUNCH,STARTER TITLE COMPONENT PN 3R124 MFR PUNCH,STARTER
KEY FEATURES
•
SHANK SHAPE: HEXAGON
•
MATERIAL: STEEL
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 8 CLASS
•
SPECIFICATION/STANDARD DATA: 05047-ASME B107.410 CAT 48 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
POINT SIZE: 0.250 INCHES IN
•
SHANK WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SHANK SHAPEHEXAGON
OVERALL LENGTH6.500 INCHES NOMINAL IN
MATERIALSTEEL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 8 CLASS
SPECIFICATION/STANDARD DATA05047-ASME B107.410 CAT 48 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
POINT SIZE0.250 INCHES IN
SHANK WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
554Interchangeable
interchangeable cross-reference
interchangeable
50 12INInterchangeable
interchangeable cross-reference
interchangeable
50Interchangeable
interchangeable cross-reference
interchangeable
B107.410Interchangeable
Same NIIN cross-reference
interchangeable
50-1/2 IN.Interchangeable
Same NIIN cross-reference
interchangeable
B107.48 TY2CL8Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3R124?
3R124 is a PUNCH,STARTER.
What parts can replace 3R124?
There are 9 known substitutes for 3R124: 554, 50 12IN, 50 and 6 more. Substitute compatibility should be verified for your specific system.
Is 3R124 still available?
3R124 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