PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

521A6-2Filter,lens,radiac

Aimtron Systems, Llc · NSN 6665-00-330-4982 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-00-330-4982 — this item is cataloged by the U.S. Government under National Stock Number 6665-00-330-4982. Primary manufacturer part number: 521A6-2.
Features
  • Filter,lens,radiac — FSC 6665
  • 4 verified cross-references
  • Primary manufacturer: Aimtron Systems, Llc
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,lens,radiac, cataloged under National Stock Number 6665-00-330-4982, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Aimtron Systems, Llc. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFilter,lens,radiac
FSC / FSG6665 — No Item Name Available (FSG 66)
ManufacturersCorning Glass Works (CAGE 14674); Aimtron Systems, Llc (CAGE 20284); Cardwell Condenser Corp Lapointe-Admiral Div (CAGE 94033)
Technical Specifications
ParameterValue
NSN6665-00-330-4982
Primary Part Number521A6-2
Item NameFilter,lens,radiac
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerAimtron Systems, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-209-2916 INTERCHANGEABLE
Washer,recessed
5935-00-259-1943289B INTERCHANGEABLE
Plug,telephone
Lucent Technologies Inc Corporate Headquarters
5905-00-636-9915 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
2520-00-734-8156 INTERCHANGEABLE
Clutch,sliding Sleeve,vehicular
5365-00-740-33725860 INTERCHANGEABLE
Spacer,sleeve
Goodrich Aerospace Canada Ltd
5950-00-829-53632115673 INTERCHANGEABLE
Transformer,audio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5945-01-005-49075860 INTERCHANGEABLE
Solenoid,electrical
Dukes Aerospace, Inc.
9320-01-071-36075860 INTERCHANGEABLE
Rubber Sheet,cellular
Reeves Bros Inc
2520-01-103-935113079 INTERCHANGEABLE
Clutch
Crown Coachworks Inc Div Crown Coachworks Auto Body & Paint
6515-01-149-58715860 INTERCHANGEABLE
Manifold Assembly,inhalation the
Becton, Dickinson and Co Dba Becton Dickinson & Co
Cross-Reference Index
Part NumberManufacturer
5860 Corning Glass Works (USA)
521A6-2 PRIMARY Aimtron Systems, Llc (USA)
521A6-2REVD Cardwell Condenser Corp Lapointe-Admiral Div (USA)
PURCH94033 Aimtron Systems, Llc (USA)
Related Parts
5310-00-209-2916INTERCHANGEABLE
WASHER,RECESSED
5935-00-259-1943INTERCHANGEABLE
PLUG,TELEPHONE
289B
5905-00-636-9915INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
2520-00-734-8156INTERCHANGEABLE
CLUTCH,SLIDING SLEEVE,VEHICULAR
5365-00-740-3372INTERCHANGEABLE
SPACER,SLEEVE
5860
5950-00-829-5363INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
2115673
5945-01-005-4907INTERCHANGEABLE
SOLENOID,ELECTRICAL
5860
9320-01-071-3607INTERCHANGEABLE
RUBBER SHEET,CELLULAR
5860
2520-01-103-9351INTERCHANGEABLE
CLUTCH
13079
6515-01-149-5871INTERCHANGEABLE
MANIFOLD ASSEMBLY,INHALATION THE
5860
6210-01-225-5331INTERCHANGEABLE
LIGHT,INDICATOR
5-860
4820-01-226-0154INTERCHANGEABLE
VALVE,GATE
5860

Frequently Asked Questions

What is NSN 6665-00-330-4982?

NSN 6665-00-330-4982 is a Filter,lens,radiac, manufactured by Aimtron Systems, Llc, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-00-330-4982?

NSN 6665-00-330-4982 has 4 cross-referenced part numbers: 5860 (Corning Glass Works), 521A6-2 (Aimtron Systems, Llc), 521A6-2REVD (Cardwell Condenser Corp Lapointe-Admiral Div), PURCH94033 (Aimtron Systems, Llc).

What NSN replaces 6665-00-330-4982?

There are 12 known substitutes for 6665-00-330-4982: 5310-00-209-2916, 5935-00-259-1943, 5905-00-636-9915 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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