PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

49690Eyepiece Assembly,optical Instru

Brunson Instrument Company Dba Brunson Instrument Company · NSN 6650-00-242-0183 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-00-242-0183 — this item is cataloged by the U.S. Government under National Stock Number 6650-00-242-0183. Primary manufacturer part number: 49690.
Features
  • Eyepiece Assembly,optical Instru — FSC 6650
  • Accessory Components and Quantity: CONDENSER MOUNT AND LAMP ASSEMBLY
  • Diopter Scale: INCLUDED
  • Focusing Type: ADJUSTABLE
  • 2 verified cross-references
  • Primary manufacturer: Brunson Instrument Company Dba Brunson Instrument Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Eyepiece Assembly,optical Instru, cataloged under National Stock Number 6650-00-242-0183, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Brunson Instrument Company Dba Brunson Instrument Company. Government technical data includes 3 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-00-242-0183
Primary Part Number49690
Item NameEyepiece Assembly,optical Instru
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerBrunson Instrument Company Dba Brunson Instrument Company
StatusACTIVE
Accessory Components and QuantityCONDENSER MOUNT AND LAMP ASSEMBLY
Diopter ScaleINCLUDED
Focusing TypeADJUSTABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4440-00-227-96951026-G501 INTERCHANGEABLE
Dehydrator Unit,nonreactivating
Howell Laboratories Inc Dba Howell Laboratories Inc
6750-01-201-9554 INTERCHANGEABLE
Paper,photographic
5930-01-370-323249690 INTERCHANGEABLE
Switch,thermostatic
Hdt Expeditionary Systems Inc
Cross-Reference Index
Part NumberManufacturer
49690 PRIMARY Brunson Instrument Company Dba Brunson Instrument Company (USA)
215-01515-1 Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division (USA)
Related Parts
4440-00-227-9695INTERCHANGEABLE
DEHYDRATOR UNIT,NONREACTIVATING
1026-G501
6750-01-201-9554INTERCHANGEABLE
PAPER,PHOTOGRAPHIC
5930-01-370-3232INTERCHANGEABLE
SWITCH,THERMOSTATIC
49690

Frequently Asked Questions

What is NSN 6650-00-242-0183?

NSN 6650-00-242-0183 is a Eyepiece Assembly,optical Instru, manufactured by Brunson Instrument Company Dba Brunson Instrument Company, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-00-242-0183?

NSN 6650-00-242-0183 has 2 cross-referenced part numbers: 49690 (Brunson Instrument Company Dba Brunson Instrument Company), 215-01515-1 (Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division).

What NSN replaces 6650-00-242-0183?

There are 3 known substitutes for 6650-00-242-0183: 4440-00-227-9695, 6750-01-201-9554, 5930-01-370-3232. Verify interchangeability with system specifications before substitution.

What are the specifications of 49690?

Key specifications for 49690: Accessory Components and Quantity: CONDENSER MOUNT AND LAMP ASSEMBLY; Diopter Scale: INCLUDED; Focusing Type: ADJUSTABLE. 3 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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