The Eyeshield,optical Instrument, cataloged under National Stock Number 1240-00-764-0180, 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 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-00-764-0180 |
| Primary Part Number | 7640180 |
| 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 |
| FSC Application Data | TELESCOPE,STRAIGHT |
| Material Document and Classification | MIL-STD-417, GRADE RS410ABC2F2 MIL SPEC ALL MATERIAL RESPONSES |
| Attachment End Inside Diameter | 1.562 INCHES IN |
| Viewing End Inside Diameter | 1.093 INCHES IN |
| Material | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OR RUBBER BUTADIENE-STYRENE CLASS SBR |
| Attachment Method | RING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7640180 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 1240-00-764-0180 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.
NSN 1240-00-764-0180 has 1 manufacturer part number on file: 7640180 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 7640180: FSC Application Data: TELESCOPE,STRAIGHT; Material Document and Classification: MIL-STD-417, GRADE RS410ABC2F2 MIL SPEC ALL MATERIAL RESPONSES; Overall Length: 1.578 INCHES MINIMUM AND 1.609 INCHES MAXIMUM IN; Attachment End Inside Diameter: 1.562 INCHES IN. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.