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Technical Data Sheet
PartsTable / COMPONENT / 4D2B
4D2B ✓ 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 4D2B is a the manufacturer industrial component. Key specifications include color: BLACK, LUSTERLESS, skirt_style: STEPPED, skirt_design: NONDETACHABLE, overall_depth: 0.740 INCHES MINIMUM IN, inside_diameter: 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN, outside_diameter: 1.740 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-579-6389, 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
4D2B
NSN: 5355-00-579-6389
FSC: 5355
CAGE: 23480 — ELECTRONIC HARDWARE CORP DBA ELECTRONIC HARDWARE CORP (USA)
SPECIFICATIONS
colorBLACK, LUSTERLESS
skirt_styleSTEPPED
skirt_designNONDETACHABLE
overall_depth0.740 INCHES MINIMUM IN
inside_diameter0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
outside_diameter1.740 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
screw_drive_typeHEXAGON SOCKET
style_designatorROUND
attachment_methodSETSCREWS
counterbore_depth0.320 INCHES MINIMUM IN
overall_thickness1.040 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN
nominal_thread_size0.164 INCHES SCREW HOLE IN
NSN5355-00-579-6389
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 4D2B TITLE COMPONENT PN 4D2B MFR 4D2B
KEY FEATURES
•
SETSCREW HOLE QUANTITY: 2
•
COUNTERBORE DIAMETER: 0.750 INCHES MINIMUM IN
•
OVERALL THICKNESS: 1.040 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN
•
ATTACHMENT METHOD: SETSCREWS
•
SCREW DRIVE TYPE: HEXAGON SOCKET
•
MATERIAL TRANSPARENCY: OPAQUE
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
•
SKIRT OUTSIDE DIAMETER: 1.690 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SETSCREW HOLE QUANTITY2
COUNTERBORE DIAMETER0.750 INCHES MINIMUM IN
OVERALL THICKNESS1.040 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN
ATTACHMENT METHODSETSCREWS
SCREW DRIVE TYPEHEXAGON SOCKET
MATERIAL TRANSPARENCYOPAQUE
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
SKIRT OUTSIDE DIAMETER1.690 INCHES MAXIMUM IN
COLORBLACK, LUSTERLESS
THREAD QUANTITY PER INCH32 SCREW HOLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
107168Interchangeable
interchangeable cross-reference
interchangeable
11037-1Interchangeable
interchangeable cross-reference
interchangeable
SFR144W3NVC44-011Interchangeable
interchangeable cross-reference
interchangeable
R26355NInterchangeable
interchangeable cross-reference
interchangeable
MS25036-109Interchangeable
interchangeable cross-reference
interchangeable
16-14 (BLUE)Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4D2B?
4D2B is a 4D2B.
What parts can replace 4D2B?
There are 18 known substitutes for 4D2B: 107168, 11037-1, SFR144W3NVC44-011 and 15 more. Substitute compatibility should be verified for your specific system.
Is 4D2B still available?
4D2B 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