PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0116Ring,retaining,optical Element

Unertl John Optical Co Inc · NSN 1240-01-459-8579 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-01-459-8579 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-459-8579. Primary manufacturer part number: 0116.
Features
  • Ring,retaining,optical Element — FSC 1240
  • 1 verified cross-reference
  • Primary manufacturer: Unertl John Optical Co Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring,retaining,optical Element, cataloged under National Stock Number 1240-01-459-8579, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Unertl John Optical Co Inc. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN1240-01-459-8579
Primary Part Number0116
Item NameRing,retaining,optical Element
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerUnertl John Optical Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6520-00-042-83357772822 INTERCHANGEABLE
Strip,abrasive,dental
Henry Schein, Inc.
5945-00-821-2982HS26SM18SA INTERCHANGEABLE
Relay,electromagnetic
Dri Relays Inc. Dba Dri Relays Inc
5905-00-871-29828215870 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5960-00-938-2663F116HY61 INTERCHANGEABLE
Electron Tube
L3harris Technologies, Inc.
6750-01-573-55000116 INTERCHANGEABLE
Film,photographic
L3harris Technologies, Inc. Dba Harris Corp Div Space and Intelligence Systems
5331-01-607-84240-1-1-6 INTERCHANGEABLE
O-Ring
Bird-Johnson Propeller Company, Llc
Cross-Reference Index
Part NumberManufacturer
0116 PRIMARY Unertl John Optical Co Inc (USA)
Related Parts
6520-00-042-8335INTERCHANGEABLE
STRIP,ABRASIVE,DENTAL
7772822
5945-00-821-2982INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
HS26SM18SA
5905-00-871-2982INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
8215870
5960-00-938-2663INTERCHANGEABLE
ELECTRON TUBE
F116HY61
6750-01-573-5500INTERCHANGEABLE
FILM,PHOTOGRAPHIC
0116
5331-01-607-8424INTERCHANGEABLE
O-RING
0-1-1-6

Frequently Asked Questions

What is NSN 1240-01-459-8579?

NSN 1240-01-459-8579 is a Ring,retaining,optical Element, manufactured by Unertl John Optical Co Inc, classified under FSC 1240 (No Item Name Available). Status: active.

What are the part numbers for NSN 1240-01-459-8579?

NSN 1240-01-459-8579 has 1 cross-referenced part number: 0116 (Unertl John Optical Co Inc).

What NSN replaces 1240-01-459-8579?

There are 6 known substitutes for 1240-01-459-8579: 6520-00-042-8335, 5945-00-821-2982, 5905-00-871-2982 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0116?

Key specifications for 0116: End Item Identification: SNIPER SCOPE, MODEL C3. 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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