Eyeshield, Optical Instrument1240-01-019-0026

NSN 1240-01-019-0026 · NIIN 010190026 · Part number 11743497

Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 19200

Government record, cited

NSN 1240-01-019-0026 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-019-0026. Manufacturer of record part number: 11743497.

Also searched as 1240-01-019-0026 · 1240010190026 · NIIN 010190026 · 01-019-0026 · FSC 1240 Optical Sighting and Ranging Equipment · CAGE 19200 · 11743497

Nearby stock numbers ← 1240-01-019-0022 Window, Optical Instrument · 1240-01-019-0153 Reflector Assembly →

Features

Eyeshield,optical Instrument — FSC 1240
Material Document and Classification: MIL-R-25988, TYPE 2, CLASS 1, GRADE 50 MIL SPEC SINGLE MATERIAL RESPONSE
Attachment End Inside Diameter: 2.680 INCHES IN
Viewing End Inside Diameter: 1.560 INCHES IN
Material: RUBBER FLUOROSILICONE CLASS FQ
Attachment Method: BONDED
3 manufacturer part numbers on file
Manufacturer of record: Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate

Identification

NSN: 1240-01-019-0026
NIIN: 010190026
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 11743497
Manufacturer: Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate

General Description

The Eyeshield,optical Instrument, cataloged under National Stock Number 1240-01-019-0026, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1240-01-019-0026
Primary Part Number	11743497
Item Name	Eyeshield,optical Instrument
FSC / FSG	1240 / 12 — Optical Sighting and Ranging Equipment
Manufacturer	Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
Status	ACTIVE
Material Document and Classification	MIL-R-25988, TYPE 2, CLASS 1, GRADE 50 MIL SPEC SINGLE MATERIAL RESPONSE
Attachment End Inside Diameter	2.680 INCHES IN
Viewing End Inside Diameter	1.560 INCHES IN
Material	RUBBER FLUOROSILICONE CLASS FQ
Attachment Method	BONDED

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
11743497 PRIMARY	Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
11743497	Basic Rubber and Plastics Co. (USA)
11743497	Indra Sistemas, Sociedad Anonima (ESP)

No interchangeability data on file.

Other items in FSC 1240 — Optical Sighting and Ranging Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

1240-00-764-4734

SUNSHADE

1240-00-987-5071

1240-00-987-5071 · Item name not on file

1240-01-068-6676

HOLDER,OPTICAL ELEMENT

1240-01-082-8849

SIGHT,INFINITY

1240-01-090-0609

1240-01-090-0609 · Item name not on file

1240-01-102-4266

1240-01-102-4266 · Item name not on file

1240-01-110-9897

1240-01-110-9897 · Item name not on file

1240-01-361-6090

COLLIMATOR,INFINITY AIMING REFER

Frequently Asked Questions

What is NSN 1240-01-019-0026?

NSN 1240-01-019-0026 is a Eyeshield,optical Instrument, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.

What part numbers are listed for NSN 1240-01-019-0026?

NSN 1240-01-019-0026 has 3 manufacturer part numbers on file: 11743497 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 11743497 (Basic Rubber and Plastics Co.), 11743497 (Indra Sistemas, Sociedad Anonima).

What are the specifications of 11743497?

Key specifications for 11743497: Material Document and Classification: MIL-R-25988, TYPE 2, CLASS 1, GRADE 50 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 2.030 INCHES NOMINAL IN; Attachment End Inside Diameter: 2.680 INCHES IN; Viewing End Inside Diameter: 1.560 INCHES IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 1240-01-019-0026 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.

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