Material Document and Classification: MIL-Q-47057,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
Edge Type: FLAT FINISH
Material: QUARTZ
Identification
NSN: 9340-01-369-1853
NIIN: 013691853
FSC: 9340 — Glass Fabricated Materials
FSG: 93 — Nonmetallic Fabricated Materials
General Description
The Window,observation, cataloged under National Stock Number 9340-01-369-1853, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
9340-01-369-1853
Item Name
Window,observation
FSC / FSG
9340 / 93 — Glass Fabricated Materials
Status
ACTIVE
Overall Thickness
0.186 INCHES NOMINAL IN
Criticality Code Justification
FEAT
Material Transparency
CLEAR
Style Designator
OVAL
Material Document and Classification
MIL-Q-47057,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
Edge Type
FLAT FINISH
Material
QUARTZ
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
Y
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
40A11155-1
3/9Design control — primary reference
Hughes Missile Systems Co San Diego
No interchangeability data on file.
Other items in FSC 9340 — Glass Fabricated Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
9340-00-001-2702
WINDOW,OBSERVATION
9340-00-001-3590
WINDOW,OBSERVATION
9340-00-001-3591
WINDOW,ELECTRICALL
9340-00-001-3592
WINDOW,OBSERVATION
9340-00-003-0380
WINDOW,OBSERVATION
9340-00-003-1497
9340-00-003-1497 · Item name not on file
9340-00-003-1553
9340-00-003-1553 · Item name not on file
9340-00-003-7325
9340-00-003-7325 · Item name not on file
Frequently Asked Questions
What is NSN 9340-01-369-1853?
NSN 9340-01-369-1853 is a Window,observation, classified under FSC 9340, Glass Fabricated Materials. Status: active.
What are the specifications of 9340-01-369-1853?
Key specifications for 9340-01-369-1853: Overall Thickness: 0.186 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Material Transparency: CLEAR; Style Designator: OVAL. 7 specifications are documented in the U.S. Government catalog.
Is NSN 9340-01-369-1853 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.