The Collimator,infrared, cataloged under National Stock Number 1240-01-072-3489, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 1240-01-072-3489 |
| Item Name | Collimator,infrared |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Status | ACTIVE |
| FSC Application Data | ACFT GUNNERY FIRE CONTROL COMPONENT |
| General Characteristics Item Description | MATERIAL NAME-OPTICAL LENS BLANK,TYPE SK2,GRADE B,STAIN 3,FINE ANNEAL,PER SPEC MIL-G-174;ITEM'S CENTER THICKNESS 0.200 IN.,DIAMETER 1.675 IN. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2078968-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1240-01-072-3489 is a Collimator,infrared, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
Key specifications for 1240-01-072-3489: FSC Application Data: ACFT GUNNERY FIRE CONTROL COMPONENT; General Characteristics Item Description: MATERIAL NAME-OPTICAL LENS BLANK,TYPE SK2,GRADE B,STAIN 3,FINE ANNEAL,PER SPEC MIL-G-174;ITEM'S CENTER THICKNESS 0.200 IN.,DIAMETER 1.675 IN. IN; End Item Identification: AN/AAQ-9 INFRARED DETECTING SET. 2 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.
NSN 1240-01-072-3489 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.