PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

440259-009Eyepiece Assembly,optical Instru

Drs Network & Imaging Systems Llc · NSN 5855-01-532-3293 · FSC 5855 · No Item Name Available
Verified by PartsTable
NSN 5855-01-532-3293 — this item is cataloged by the U.S. Government under National Stock Number 5855-01-532-3293. Primary manufacturer part number: 440259-009.
Features
  • Eyepiece Assembly,optical Instru — FSC 5855
  • 4 verified cross-references
  • Primary manufacturer: Drs Network & Imaging Systems Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Eyepiece Assembly,optical Instru, cataloged under National Stock Number 5855-01-532-3293, is classified within Federal Supply Class 5855 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Drs Network & Imaging Systems Llc. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameEyepiece Assembly,optical Instru
FSC / FSG5855 — No Item Name Available (FSG 58)
ManufacturersDrs Network & Imaging Systems Llc (CAGE 32865); Drs Network & Imaging Systems, Llc (CAGE 1HYQ4)
Technical Specifications
ParameterValue
NSN5855-01-532-3293
Primary Part Number440259-009
Item NameEyepiece Assembly,optical Instru
FSC / FSG5855 / 58 — No Item Name Available
ManufacturerDrs Network & Imaging Systems Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5962-00-011-276119710 INTERCHANGEABLE
Microcircuit,digital
Emcore Corporation Div Concord Division
4730-00-278-85758-6 130139B INTERCHANGEABLE
Reducer,pipe
Sae International Dba Sae International
5961-00-450-8594 INTERCHANGEABLE
Transistor
5980-01-145-86478500A-4521 INTERCHANGEABLE
Light Emitting Diode
Fluke Corp
5365-01-386-6778440016 INTERCHANGEABLE
Spacer,sleeve
Bosch Rexroth Corporation Div Industrial Hydraulics
Cross-Reference Index
Part NumberManufacturer
440259-009 PRIMARY Drs Network & Imaging Systems Llc (USA)
44-50-370 Drs Network & Imaging Systems, Llc (USA)
440016 Drs Network & Imaging Systems Llc (USA)
44-50-370-002 Drs Network & Imaging Systems Llc (USA)
Related Parts
5962-00-011-2761INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
19710
4730-00-278-8575INTERCHANGEABLE
REDUCER,PIPE
8-6 130139B
5961-00-450-8594INTERCHANGEABLE
TRANSISTOR
5980-01-145-8647INTERCHANGEABLE
LIGHT EMITTING DIODE
8500A-4521
5365-01-386-6778INTERCHANGEABLE
SPACER,SLEEVE
440016

Frequently Asked Questions

What is NSN 5855-01-532-3293?

NSN 5855-01-532-3293 is a Eyepiece Assembly,optical Instru, manufactured by Drs Network & Imaging Systems Llc, classified under FSC 5855 (No Item Name Available). Status: active.

What are the part numbers for NSN 5855-01-532-3293?

NSN 5855-01-532-3293 has 4 cross-referenced part numbers: 440259-009 (Drs Network & Imaging Systems Llc), 44-50-370 (Drs Network & Imaging Systems, Llc), 440016 (Drs Network & Imaging Systems Llc), 44-50-370-002 (Drs Network & Imaging Systems Llc).

What NSN replaces 5855-01-532-3293?

There are 5 known substitutes for 5855-01-532-3293: 5962-00-011-2761, 4730-00-278-8575, 5961-00-450-8594 and 2 more. Verify interchangeability with system specifications before substitution.

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