The Periscope Subassembly, cataloged under National Stock Number 1240-01-072-1066, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-072-1066 |
| Primary Part Number | 12266854 |
| Item Name | Periscope Subassembly |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Major Components | SLIDER-12266947,MIRROR-12266907,KEY-MS20068-96,PIN-MS16555-618 PRESS FIT IN 12266908,SUPPORT-12266908,HOUSING-12266905,TUBE-12266913,RING- 12266892,LOCK RING-12266893,SHAFT- 12266945,RING-MS16633-4018,SPRING- 12266939,RING-MS16633-4012,PIN-12266 946 BOND TO 12266907 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12266854 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 957F048054 | L3 Technologies, Inc. Div L3 Keo (USA) |
NSN 1240-01-072-1066 is a Periscope Subassembly, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-072-1066 has 2 manufacturer part numbers on file: 12266854 (U S Army Tank Automotive Command Amsta-Im-Mm), 957F048054 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for 12266854: Major Components: SLIDER-12266947,MIRROR-12266907,KEY-MS20068-96,PIN-MS16555-618 PRESS FIT IN 12266908,SUPPORT-12266908,HOUSING-12266905,TUBE-12266913,RING- 12266892,LOCK RING-12266893,SHAFT- 12266945,RING-MS16633-4018,SPRING- 12266939,RING-MS16633-4012,PIN-12266 946 BOND TO 12266907. 1 specification is 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 1240-01-072-1066 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.