PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 9903-2931
9903-2931 ✓ 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 BACK DISC is a the manufacturer industrial component. Key specifications include overall_diameter: 45.000 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 4930-01-515-3726, 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
9903-2931
NSN: 4930-01-515-3726
FSC: 4930
CAGE: 92858 — HANNAY REELS INC (USA)
SPECIFICATIONS
overall_diameter45.000 INCHES NOMINAL IN
NSN4930-01-515-3726
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BACK DISC TITLE COMPONENT PN 9903-2931 MFR BACK DISC
KEY FEATURES
•
OVERALL DIAMETER: 45.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER45.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
04546Interchangeable
interchangeable cross-reference
interchangeable
4546Interchangeable
interchangeable cross-reference
interchangeable
6002-582Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-26/4Interchangeable
interchangeable cross-reference
interchangeable
VBE609V3E9Interchangeable
interchangeable cross-reference
interchangeable
995-5B40HMSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9903-2931?
9903-2931 is a BACK DISC.
What parts can replace 9903-2931?
There are 14 known substitutes for 9903-2931: 04546, 4546, 6002-582 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9903-2931?
9903-2931 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4930-01-515-3726. 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