PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128425-1Lens,optical Instrument

Sypris Electronics, Llc · NSN 6650-00-525-3446 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-00-525-3446 — this item is cataloged by the U.S. Government under National Stock Number 6650-00-525-3446. Primary manufacturer part number: 128425-1.
Features
  • Lens,optical Instrument — FSC 6650
  • Single Lens Style: DOUBLE CONVEX
  • Diameter: 13.000 MILLIMETERS NOMINAL MM
  • Axial Thickness: 12.500 MILLIMETERS NOMINAL MM
  • 2 verified cross-references
  • Primary manufacturer: Sypris Electronics, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Lens,optical Instrument, cataloged under National Stock Number 6650-00-525-3446, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Sypris Electronics, Llc. 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-00-525-3446
Primary Part Number128425-1
Item NameLens,optical Instrument
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerSypris Electronics, Llc
StatusACTIVE
Single Lens StyleDOUBLE CONVEX
Diameter13.000 MILLIMETERS NOMINAL MM
Axial Thickness12.500 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4820-00-428-25018639FH1-4 INTERCHANGEABLE
Valve,angle
Johnson Controls Navy Systems, Llc
3455-00-505-023715429 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5999-01-362-0104 INTERCHANGEABLE
Heat Sink-Insulator
5315-01-484-949894191 INTERCHANGEABLE
Pin,straight,headed
Sps Technologies, Llc Dba PB Fasteners
Cross-Reference Index
Part NumberManufacturer
128425-1 PRIMARY Sypris Electronics, Llc (USA)
94191 Edmund Optics, Inc (USA)
Related Parts
4820-00-428-2501INTERCHANGEABLE
VALVE,ANGLE
8639FH1-4
3455-00-505-0237INTERCHANGEABLE
CUTTER,MILLING,END
15429
5999-01-362-0104INTERCHANGEABLE
HEAT SINK-INSULATOR
5315-01-484-9498INTERCHANGEABLE
PIN,STRAIGHT,HEADED
94191

Frequently Asked Questions

What is NSN 6650-00-525-3446?

NSN 6650-00-525-3446 is a Lens,optical Instrument, manufactured by Sypris Electronics, Llc, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-00-525-3446?

NSN 6650-00-525-3446 has 2 cross-referenced part numbers: 128425-1 (Sypris Electronics, Llc), 94191 (Edmund Optics, Inc).

What NSN replaces 6650-00-525-3446?

There are 4 known substitutes for 6650-00-525-3446: 4820-00-428-2501, 3455-00-505-0237, 5999-01-362-0104 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 128425-1?

Key specifications for 128425-1: Single Lens Style: DOUBLE CONVEX; Diameter: 13.000 MILLIMETERS NOMINAL MM; Axial Thickness: 12.500 MILLIMETERS NOMINAL MM. 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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