The Vertical Reference Unit, cataloged under National Stock Number 1240-01-181-2260, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-181-2260 |
| Primary Part Number | 063345 |
| Item Name | Vertical Reference Unit |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF,VERTICAL REF GYRO; ERECTION AMPLIFIER; FOR USE WITH MODEL 977 PERISCOPE SYSTEM |
| 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 |
|---|---|
| 063345 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 979F063345 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 1240-01-181-2260 is a Vertical Reference Unit, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-181-2260 has 1 manufacturer part number on file: 063345 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for 063345: General Characteristics Item Description: CONSISTS OF,VERTICAL REF GYRO; ERECTION AMPLIFIER; FOR USE WITH MODEL 977 PERISCOPE SYSTEM. 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 1240-01-181-2260 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.