PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

651-03-03PCLens,breathing Appa

Scott Technologies, Inc. · NSN 1660-01-407-6553 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-407-6553 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-407-6553. Primary manufacturer part number: 651-03-03PC.
Features
  • Lens,breathing Appa — FSC 1660
  • General Characteristics Item Description: LENS MADE OF POLYCARBONATE HARDCOATED,SIERRA SMOKE,PART OF MASK ASSY OXYGEN AND SMOKE
  • 3 verified cross-references
  • Primary manufacturer: Scott Technologies, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Lens,breathing Appa, cataloged under National Stock Number 1660-01-407-6553, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Scott Technologies, Inc.. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-01-407-6553
Primary Part Number651-03-03PC
Item NameLens,breathing Appa
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerScott Technologies, Inc.
StatusACTIVE
General Characteristics Item DescriptionLENS MADE OF POLYCARBONATE HARDCOATED,SIERRA SMOKE,PART OF MASK ASSY OXYGEN AND SMOKE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6220-00-299-692215C7154 INTERCHANGEABLE
Headlight
Napco International Llc Dba Napco International Inc
Cross-Reference Index
Part NumberManufacturer
651-03-03PC Scott Technologies, Inc. (USA)
651-03-03 Scott Technologies, Inc. (USA)
651-03-3 Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
6220-00-299-6922INTERCHANGEABLE
HEADLIGHT
15C7154

Frequently Asked Questions

What is NSN 1660-01-407-6553?

NSN 1660-01-407-6553 is a Lens,breathing Appa, manufactured by Scott Technologies, Inc., classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-407-6553?

NSN 1660-01-407-6553 has 3 cross-referenced part numbers: 651-03-03PC (Scott Technologies, Inc.), 651-03-03 (Scott Technologies, Inc.), 651-03-3 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 1660-01-407-6553?

There is 1 known substitute for 1660-01-407-6553: 6220-00-299-6922. Verify interchangeability with system specifications before substitution.

What are the specifications of 651-03-03PC?

Key specifications for 651-03-03PC: General Characteristics Item Description: LENS MADE OF POLYCARBONATE HARDCOATED,SIERRA SMOKE,PART OF MASK ASSY OXYGEN AND SMOKE. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com