General Characteristics Item Description: GLASS,OPTICAL 1.3955 IN. DIA,.2851 IN. THK,CONCAVE AND CONVEX SURFACES TO BE POLISHED ALL OTHERS GROUND,CENTERING ERROR: 1.50 MINUTES MAX. IN
Identification
NSN: 5855-01-027-3623
NIIN: 010273623
FSC: 5855 — Night Vision Equipment, Emitted and Reflected Radiation
FSG: 58 — Communication, Detection, and Coherent Radiation Equipment
General Description
The Lens,converging,objective Viewer, cataloged under National Stock Number 5855-01-027-3623, is classified within Federal Supply Class 5855 (Night Vision Equipment, Emitted and Reflected Radiation) of the Communication, Detection, and Coherent Radiation Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
5855-01-027-3623
Item Name
Lens,converging,objective Viewer
FSC / FSG
5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation
Status
ACTIVE
General Characteristics Item Description
GLASS,OPTICAL 1.3955 IN. DIA,.2851 IN. THK,CONCAVE AND CONVEX SURFACES TO BE POLISHED ALL OTHERS GROUND,CENTERING ERROR: 1.50 MINUTES MAX. IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL D — Destroy Item
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
SM-D-771232
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 5855 — Night Vision Equipment, Emitted and Reflected Radiation
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5855-00-003-2243
5855-00-003-2243 · Item name not on file
5855-00-003-3228
SUPPORT,SEARCHLIGH
5855-00-003-6408
LENS FILTER ASSY
5855-00-004-0904
PLATE
5855-00-004-1909
5855-00-004-1909 · Item name not on file
5855-00-006-9703
5855-00-006-9703 · Item name not on file
5855-00-007-5137
5855-00-007-5137 · Item name not on file
5855-00-010-0147
5855-00-010-0147 · Item name not on file
Frequently Asked Questions
What is NSN 5855-01-027-3623?
NSN 5855-01-027-3623 is a Lens,converging,objective Viewer, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
What are the specifications of 5855-01-027-3623?
Key specifications for 5855-01-027-3623: General Characteristics Item Description: GLASS,OPTICAL 1.3955 IN. DIA,.2851 IN. THK,CONCAVE AND CONVEX SURFACES TO BE POLISHED ALL OTHERS GROUND,CENTERING ERROR: 1.50 MINUTES MAX. IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 5855-01-027-3623 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.
What is the DEMIL code for NSN 5855-01-027-3623?
NSN 5855-01-027-3623 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.