PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2022Telescope,straight

Brunson Instrument Company Dba Brunson Instrument Company · NSN 6650-00-021-9555 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-00-021-9555 — this item is cataloged by the U.S. Government under National Stock Number 6650-00-021-9555. Primary manufacturer part number: 2022.
Features
  • Telescope,straight — FSC 6650
  • Objective Aperture Diameter: 42.0 MILLIMETERS NOMINAL MM
  • Diopter Scale: INCLUDED
  • Scale Calibration: 0 TO 0.001 IN. IN
  • Optical Device Type: LENS
  • Magnification Type: VARIABLE
  • Carrying Case: NOT PROVIDED
  • Magnification: 4.0X MINIMUM AND 46.0X MAXIMUM
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Telescope,straight, cataloged under National Stock Number 6650-00-021-9555, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-00-021-9555
Primary Part Number2022
Item NameTelescope,straight
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerBrunson Instrument Company Dba Brunson Instrument Company
StatusACTIVE
Objective Aperture Diameter42.0 MILLIMETERS NOMINAL MM
Diopter ScaleINCLUDED
Scale Calibration0 TO 0.001 IN. IN
Optical Device TypeLENS
Magnification TypeVARIABLE
Carrying CaseNOT PROVIDED
Magnification4.0X MINIMUM AND 46.0X MAXIMUM
Focusing TypeADJUSTABLE
BracketNOT PROVIDED
Scale MarkingsPROVIDED
Field View Coverage37 MIN. AT INFINITY,42 MM AT ZERO FOCUS MM
Straight Type Overall Length17.750 INCHES NOMINAL IN
Reticle Style DesignatorCROSSLINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-045-3811 INTERCHANGEABLE
Washer,key
6650-01-129-288683 INTERCHANGEABLE
Telescope,alignment
Brunson Instrument Company Dba Brunson Instrument Co
6650-01-200-9672 INTERCHANGEABLE
Telescope,straight
6650-01-261-038971-2030 INTERCHANGEABLE
Telescope,straight
Keuffel and Esser Co
6650-01-318-908271-2022 INTERCHANGEABLE
Telescope,straight
Keuffel and Esser Co
5970-01-374-4492712022 INTERCHANGEABLE
Insulator,plate
Ge Aviation Systems Llc
4730-01-420-9961712-022 INTERCHANGEABLE
Elbow,pipe
Malabar
Cross-Reference Index
Part NumberManufacturer
6650-1212-2000 Defense Supply Center Richmond Industrial Plant Equipment /dla/ (USA)
2022 PRIMARY Brunson Instrument Company Dba Brunson Instrument Company (USA)
71-2022 Brunson Instrument Company Dba Brunson Instrument Company (USA)
10417461 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
5310-00-045-3811INTERCHANGEABLE
WASHER,KEY
6650-01-129-2886INTERCHANGEABLE
TELESCOPE,ALIGNMENT
83
6650-01-200-9672INTERCHANGEABLE
TELESCOPE,STRAIGHT
6650-01-261-0389INTERCHANGEABLE
TELESCOPE,STRAIGHT
71-2030
6650-01-318-9082INTERCHANGEABLE
TELESCOPE,STRAIGHT
71-2022
5970-01-374-4492INTERCHANGEABLE
INSULATOR,PLATE
712022
4730-01-420-9961INTERCHANGEABLE
ELBOW,PIPE
712-022

Frequently Asked Questions

What is NSN 6650-00-021-9555?

NSN 6650-00-021-9555 is a Telescope,straight, 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 6650-00-021-9555?

NSN 6650-00-021-9555 has 4 cross-referenced part numbers: 6650-1212-2000 (Defense Supply Center Richmond Industrial Plant Equipment /dla/), 2022 (Brunson Instrument Company Dba Brunson Instrument Company), 71-2022 (Brunson Instrument Company Dba Brunson Instrument Company), 10417461 (Nimikkeistokeskus Ncb Finland).

What NSN replaces 6650-00-021-9555?

There are 7 known substitutes for 6650-00-021-9555: 5310-00-045-3811, 6650-01-129-2886, 6650-01-200-9672 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2022?

Key specifications for 2022: Objective Aperture Diameter: 42.0 MILLIMETERS NOMINAL MM; Diopter Scale: INCLUDED; Scale Calibration: 0 TO 0.001 IN. IN; Optical Device Type: LENS. 13 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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