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PartsTable / COMPONENT / 4931-1
4931-1 ✓ 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 LASER DIODE,FIBER OPTIC is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include material: CARBIDE TIP, point_type: RELIEVED CONE, point_angle: 118.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND, flute_length: 3.000 INCHES NOMINAL IN, overall_length: 5.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5420-00-371-9912, 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
4931-1
NSN: 5420-00-371-9912
FSC: 5420
CAGE: 81336 — CHIEF OF ENGINEERS DEPT OF ARMY (USA)
SPECIFICATIONS
materialCARBIDE TIP
point_typeRELIEVED CONE
point_angle118.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length3.000 INCHES NOMINAL IN
overall_length5.000 INCHES NOMINAL IN
shank_diameter0.375 INCHES NOMINAL IN
hardness_rating48.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM
special_featuresDIE DRILL; 3/8 IN. DIA IN
cutting_end_styleSTRAIGHT FLUTTED
nominal_cutting_diameter0.3750 INCHES IN
cutting_rotation_directionRIGHT-HAND
NSN5420-00-371-9912
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LASER DIODE,FIBER OPTIC TITLE COMPONENT PN 4931-1 MFR LASER DIODE,FIBER OPTI
KEY FEATURES
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: ENG DWG D-4931-1
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
TECHNICAL CHARACTERISTICS (FLIS)
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSENG DWG D-4931-1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
9282829-01Interchangeable
interchangeable cross-reference
interchangeable
49311Interchangeable
interchangeable cross-reference
interchangeable
31W-0169Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
760 3/8Interchangeable
interchangeable cross-reference
interchangeable
C49311Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4931-1?
4931-1 is a LASER DIODE,FIBER OPTIC.
What parts can replace 4931-1?
There are 8 known substitutes for 4931-1: 9282829-01, 49311, 31W-0169 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4931-1?
4931-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5420-00-371-9912. 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