PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

238535Filter,light,optical Instrument

Polaroid Corporation Dba Polaroid · NSN 6650-00-443-3409 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-00-443-3409 — this item is cataloged by the U.S. Government under National Stock Number 6650-00-443-3409. Primary manufacturer part number: 238535.
Features
  • Filter,light,optical Instrument — FSC 6650
  • Overall Thickness: 0.104 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
  • 3 verified cross-references
  • Primary manufacturer: Polaroid Corporation Dba Polaroid
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
  • Area illumination
  • Indicator and warning display
General Description

The Filter,light,optical Instrument, cataloged under National Stock Number 6650-00-443-3409, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Polaroid Corporation Dba Polaroid. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN6650-00-443-3409
Primary Part Number238535
Item NameFilter,light,optical Instrument
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerPolaroid Corporation Dba Polaroid
StatusACTIVE
Overall Thickness0.104 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4820-00-139-3088 INTERCHANGEABLE
Valve Assembly,manifold
2520-00-395-772214132 INTERCHANGEABLE
Breather
Falls Filtration Technologies, Inc.
5905-01-046-683234-7143 INTERCHANGEABLE
Resistor,fixed,wire Wound
Fluke Corp
2520-01-714-3779238535 INTERCHANGEABLE
Breather
Dana Off Highway Products, Llc
Cross-Reference Index
Part NumberManufacturer
238535 Polaroid Corporation Dba Polaroid (USA)
6870279-1 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
B238535 Polaroid Corporation Dba Polaroid (USA)
Related Parts
4820-00-139-3088INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
2520-00-395-7722INTERCHANGEABLE
BREATHER
14132
5905-01-046-6832INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
34-7143
2520-01-714-3779INTERCHANGEABLE
BREATHER
238535

Frequently Asked Questions

What is NSN 6650-00-443-3409?

NSN 6650-00-443-3409 is a Filter,light,optical Instrument, manufactured by Polaroid Corporation Dba Polaroid, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-00-443-3409?

NSN 6650-00-443-3409 has 3 cross-referenced part numbers: 238535 (Polaroid Corporation Dba Polaroid), 6870279-1 (Lockheed Martin Corporation Div Rotary and Mission Systems), B238535 (Polaroid Corporation Dba Polaroid).

What NSN replaces 6650-00-443-3409?

There are 4 known substitutes for 6650-00-443-3409: 4820-00-139-3088, 2520-00-395-7722, 5905-01-046-6832 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 238535?

Key specifications for 238535: Overall Length: 0.802 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN; Overall Thickness: 0.104 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN; Overall Width: 0.650 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN. 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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