PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34344Lens,optical Instrument,mounted

Butler Creek · NSN 6650-01-502-1871 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-01-502-1871 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-502-1871. Primary manufacturer part number: 34344.
Features
  • Lens,optical Instrument,mounted — FSC 6650
  • Assembly Method: CLAMP
  • Single Lens Style: DOUBLE CONVEX
  • Axial Thickness: 0.610 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Butler Creek
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Lens,optical Instrument,mounted, cataloged under National Stock Number 6650-01-502-1871, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Butler Creek. Government technical data includes 3 verified specifications, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-01-502-1871
Primary Part Number34344
Item NameLens,optical Instrument,mounted
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerButler Creek
StatusACTIVE
Assembly MethodCLAMP
Single Lens StyleDOUBLE CONVEX
Axial Thickness0.610 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5305-00-959-4157MS35191-319 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4820-01-209-445234534 INTERCHANGEABLE
Valve,bypass
Brunswick Corp Dba Mercury Marine Div Mercury Marine
6650-01-545-520843-OBJ INTERCHANGEABLE
Cap,lens
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
6520-01-549-009434344 INTERCHANGEABLE
Face Bow,articulator,dental
Whip-Mix Corp
5340-01-657-480243 OBJ INTERCHANGEABLE
Cap-Plug,protective,dust and Moi
Butler Creek
Cross-Reference Index
Part NumberManufacturer
34344 PRIMARY Butler Creek (USA)
43OBJ Butler Creek (USA)
Related Parts
5305-00-959-4157INTERCHANGEABLE
SCREW,MACHINE
MS35191-319
4820-01-209-4452INTERCHANGEABLE
VALVE,BYPASS
34534
6650-01-545-5208INTERCHANGEABLE
CAP,LENS
43-OBJ
6520-01-549-0094INTERCHANGEABLE
FACE BOW,ARTICULATOR,DENTAL
34344
5340-01-657-4802INTERCHANGEABLE
CAP-PLUG,PROTECTIVE,DUST AND MOI
43 OBJ

Frequently Asked Questions

What is NSN 6650-01-502-1871?

NSN 6650-01-502-1871 is a Lens,optical Instrument,mounted, manufactured by Butler Creek, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-01-502-1871?

NSN 6650-01-502-1871 has 2 cross-referenced part numbers: 34344 (Butler Creek), 43OBJ (Butler Creek).

What NSN replaces 6650-01-502-1871?

There are 5 known substitutes for 6650-01-502-1871: 5305-00-959-4157, 4820-01-209-4452, 6650-01-545-5208 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 34344?

Key specifications for 34344: Assembly Method: CLAMP; Single Lens Style: DOUBLE CONVEX; Axial Thickness: 0.610 INCHES NOMINAL IN; End Item Identification: 1005014692133. 4 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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