PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

904494Base Assembly,converter

Mission Systems Orchard Park Inc · NSN 1660-00-874-2792 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-874-2792 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-874-2792. Primary manufacturer part number: 904494.
Features
  • Base Assembly,converter — FSC 1660
  • FSC Application Data: HEAT AND VENT SYSTEM,AIR CONDITIONING,AIRCRAFT
  • General Characteristics Item Description: 3.250 IN. H,11.000 IN. W,13.000 IN. LG IN
  • 5 verified cross-references
  • Primary manufacturer: Mission Systems Orchard Park Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Base Assembly,converter, cataloged under National Stock Number 1660-00-874-2792, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Mission Systems Orchard Park Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-00-874-2792
Primary Part Number904494
Item NameBase Assembly,converter
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusACTIVE
FSC Application DataHEAT AND VENT SYSTEM,AIR CONDITIONING,AIRCRAFT
General Characteristics Item Description3.250 IN. H,11.000 IN. W,13.000 IN. LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-916-6485 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Cross-Reference Index
Part NumberManufacturer
8148650 Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (USA)
904494 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
903249 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
903249 Mission Systems Orchard Park Inc (USA)
904494 PRIMARY Mission Systems Orchard Park Inc (USA)
Related Parts
3110-00-916-6485INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER

Frequently Asked Questions

What is NSN 1660-00-874-2792?

NSN 1660-00-874-2792 is a Base Assembly,converter, manufactured by Mission Systems Orchard Park Inc, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-874-2792?

NSN 1660-00-874-2792 has 5 cross-referenced part numbers: 8148650 (Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force), 904494 (Ingersoll-Rand Company Dba Ingersoll-Rand), 903249 (Ingersoll-Rand Company Dba Ingersoll-Rand), 903249 (Mission Systems Orchard Park Inc), 904494 (Mission Systems Orchard Park Inc).

What NSN replaces 1660-00-874-2792?

There is 1 known substitute for 1660-00-874-2792: 3110-00-916-6485. Verify interchangeability with system specifications before substitution.

What are the specifications of 904494?

Key specifications for 904494: FSC Application Data: HEAT AND VENT SYSTEM,AIR CONDITIONING,AIRCRAFT; General Characteristics Item Description: 3.250 IN. H,11.000 IN. W,13.000 IN. LG IN. 2 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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