PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B321Cleaning Compound,optical Lens

U S Dept of Transportation Federal Aviation Administration · NSN 6850-01-051-0581 · FSC 6850 · No Item Name Available
Verified by PartsTable
NSN 6850-01-051-0581 — this item is cataloged by the U.S. Government under National Stock Number 6850-01-051-0581. Primary manufacturer part number: B321.
Features
  • Cleaning Compound,optical Lens — FSC 6850
  • Physical Form: EMULSION LIQUID
  • 2 verified cross-references
  • Primary manufacturer: U S Dept of Transportation Federal Aviation Administration
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cleaning Compound,optical Lens, cataloged under National Stock Number 6850-01-051-0581, is classified within Federal Supply Class 6850 (No Item Name Available) of the Chemicals and Chemical Products group. The primary manufacturer of record is U S Dept of Transportation Federal Aviation Administration. Government technical data includes 1 verified specification, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6850-01-051-0581
Primary Part NumberB321
Item NameCleaning Compound,optical Lens
FSC / FSG6850 / 68 — No Item Name Available
ManufacturerU S Dept of Transportation Federal Aviation Administration
StatusACTIVE
Physical FormEMULSION LIQUID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3010-00-174-5633B321 INTERCHANGEABLE
Coupling,shaft,flexible
Charles Bond Company Dba Christiana Machine Company
3455-00-194-055058-10071 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5342-00-200-3757K7107441REV2PT1 INTERCHANGEABLE
Mount,resilient,weapon System
General Electric Company
5365-00-829-0965B3-21 INTERCHANGEABLE
Spacer,ring
Roller Bearing Co of America, Inc Div Pic Design
4140-00-829-87650691-7 INTERCHANGEABLE
Fan,centrifugal
Lockheed Martin Corporation Div Rms - Mitchel Field
5955-01-029-70442891660-1 INTERCHANGEABLE
Crystal Unit,quartz
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
B321 PRIMARY U S Dept of Transportation Federal Aviation Administration (USA)
B321 Swedlow Inc Liberty Mirror Div (USA)
Related Parts
3010-00-174-5633INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
B321
3455-00-194-0550INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10071
5342-00-200-3757INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
K7107441REV2PT1
5365-00-829-0965INTERCHANGEABLE
SPACER,RING
B3-21
4140-00-829-8765INTERCHANGEABLE
FAN,CENTRIFUGAL
0691-7
5955-01-029-7044INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
2891660-1

Frequently Asked Questions

What is NSN 6850-01-051-0581?

NSN 6850-01-051-0581 is a Cleaning Compound,optical Lens, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 6850 (No Item Name Available). Status: active.

What are the part numbers for NSN 6850-01-051-0581?

NSN 6850-01-051-0581 has 2 cross-referenced part numbers: B321 (U S Dept of Transportation Federal Aviation Administration), B321 (Swedlow Inc Liberty Mirror Div).

What NSN replaces 6850-01-051-0581?

There are 6 known substitutes for 6850-01-051-0581: 3010-00-174-5633, 3455-00-194-0550, 5342-00-200-3757 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B321?

Key specifications for B321: Physical Form: EMULSION LIQUID. 1 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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