PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2D1508Rotor,ignition Distributor

Caterpillar Inc Div Caterpillar Defense · NSN 2920-00-946-8496 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-00-946-8496 — this item is cataloged by the U.S. Government under National Stock Number 2920-00-946-8496. Primary manufacturer part number: 2D1508.
Features
  • Rotor,ignition Distributor — FSC 2920
  • Thickness: 0.875 INCHES NOMINAL IN
  • Mounting Method: SHAFT
  • Shaft Shape for Which Designed: ROUND W/SLOTS
  • Diameter: 2.250 INCHES NOMINAL IN
  • Body Material: STEEL
  • 2 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Rotor,ignition Distributor, cataloged under National Stock Number 2920-00-946-8496, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2920-00-946-8496
Primary Part Number2D1508
Item NameRotor,ignition Distributor
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Thickness0.875 INCHES NOMINAL IN
Mounting MethodSHAFT
Shaft Shape for Which DesignedROUND W/SLOTS
Diameter2.250 INCHES NOMINAL IN
Body MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1560-00-047-3810174972 INTERCHANGEABLE
Fitting
Lockheed Martin Corp
4820-00-051-67992D1508 INTERCHANGEABLE
Valve,safety Relief
Crissair Inc Div Esco Technologies
4820-01-192-8317174972 INTERCHANGEABLE
Cage,valve
Marotta Controls Inc
4820-01-245-5690 INTERCHANGEABLE
Cage,valve
Cross-Reference Index
Part NumberManufacturer
174972 Eaton Aerospace, Llc Dba Jackson South (USA)
2D1508 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
1560-00-047-3810INTERCHANGEABLE
FITTING
174972
4820-00-051-6799INTERCHANGEABLE
VALVE,SAFETY RELIEF
2D1508
4820-01-192-8317INTERCHANGEABLE
CAGE,VALVE
174972
4820-01-245-5690INTERCHANGEABLE
CAGE,VALVE

Frequently Asked Questions

What is NSN 2920-00-946-8496?

NSN 2920-00-946-8496 is a Rotor,ignition Distributor, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2920 (No Item Name Available). Status: active.

What are the part numbers for NSN 2920-00-946-8496?

NSN 2920-00-946-8496 has 2 cross-referenced part numbers: 174972 (Eaton Aerospace, Llc Dba Jackson South), 2D1508 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 2920-00-946-8496?

There are 4 known substitutes for 2920-00-946-8496: 1560-00-047-3810, 4820-00-051-6799, 4820-01-192-8317 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2D1508?

Key specifications for 2D1508: Thickness: 0.875 INCHES NOMINAL IN; Mounting Method: SHAFT; Shaft Shape for Which Designed: ROUND W/SLOTS; Diameter: 2.250 INCHES NOMINAL IN. 5 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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