PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9903-2931Back Disc

Hannay Reels Inc · NSN 4930-01-515-3726 · FSC 4930 · No Item Name Available
Verified by PartsTable
NSN 4930-01-515-3726 — this item is cataloged by the U.S. Government under National Stock Number 4930-01-515-3726. Primary manufacturer part number: 9903-2931.
Features
  • Back Disc — FSC 4930
  • Overall Diameter: 45.000 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Hannay Reels Inc
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Back Disc, cataloged under National Stock Number 4930-01-515-3726, is classified within Federal Supply Class 4930 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Hannay Reels Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4930-01-515-3726
Primary Part Number9903-2931
Item NameBack Disc
FSC / FSG4930 / 49 — No Item Name Available
ManufacturerHannay Reels Inc
StatusACTIVE
Overall Diameter45.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5815-00-065-60544546 INTERCHANGEABLE
Selector Magnet Ass
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
5905-00-078-6333 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
4820-00-482-36214546 INTERCHANGEABLE
Plug,relief Valve
Husco International Inc
5935-00-660-5467SM-D-377388 GR5 INTERCHANGEABLE
Connector,plug,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-840-5400 INTERCHANGEABLE
Coil,radio Frequency
6240-00-866-4143 INTERCHANGEABLE
Lamp,incandescent
5935-00-990-0100413324-1 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
5915-01-196-96144546 INTERCHANGEABLE
Filter,band Suppression
Teledyne Defense Electronics, Llc Dba Teledyne Microwave Solutions
6130-01-519-38304546 INTERCHANGEABLE
Power Supply
Northwest Power, Inc. Dba Northwest Power Integrations Inc
5930-01-520-86614546 INTERCHANGEABLE
Switch,starter
Racing Products Group Inc Dba Longacre Racing Products Inc
Cross-Reference Index
Part NumberManufacturer
9903-2931 PRIMARY Hannay Reels Inc (USA)
45-46 Hannay Reels Inc (USA)
Related Parts
5815-00-065-6054INTERCHANGEABLE
SELECTOR MAGNET ASS
4546
5905-00-078-6333INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
4820-00-482-3621INTERCHANGEABLE
PLUG,RELIEF VALVE
4546
5935-00-660-5467INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SM-D-377388 GR5
5950-00-840-5400INTERCHANGEABLE
COIL,RADIO FREQUENCY
6240-00-866-4143INTERCHANGEABLE
LAMP,INCANDESCENT
5935-00-990-0100INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
413324-1
5915-01-196-9614INTERCHANGEABLE
FILTER,BAND SUPPRESSION
4546
6130-01-519-3830INTERCHANGEABLE
POWER SUPPLY
4546
5930-01-520-8661INTERCHANGEABLE
SWITCH,STARTER
4546

Frequently Asked Questions

What is NSN 4930-01-515-3726?

NSN 4930-01-515-3726 is a Back Disc, manufactured by Hannay Reels Inc, classified under FSC 4930 (No Item Name Available). Status: active.

What are the part numbers for NSN 4930-01-515-3726?

NSN 4930-01-515-3726 has 2 cross-referenced part numbers: 9903-2931 (Hannay Reels Inc), 45-46 (Hannay Reels Inc).

What NSN replaces 4930-01-515-3726?

There are 10 known substitutes for 4930-01-515-3726: 5815-00-065-6054, 5905-00-078-6333, 4820-00-482-3621 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9903-2931?

Key specifications for 9903-2931: Overall Diameter: 45.000 INCHES NOMINAL IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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