The Cover,periscope, cataloged under National Stock Number 2090-01-089-4652, is classified within Federal Supply Class 2090 (Miscellaneous Ship and Marine Equipment) of the Ship and Marine Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2090-01-089-4652 |
| Primary Part Number | 055836 |
| Item Name | Cover,periscope |
| FSC / FSG | 2090 / 20 — Miscellaneous Ship and Marine Equipment |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 055836 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 933C055836 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 2090-01-089-4652 is a Cover,periscope, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 2090, Miscellaneous Ship and Marine Equipment. Status: active.
NSN 2090-01-089-4652 has 1 manufacturer part number on file: 055836 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for 055836: Special Features: MATERIAL ALUMINUM ALLOY 6061 PER QQ-A-250/11 T6; OUTSIDE DIAMETER 7.375 INCHES IN; End Item Identification: PART OF THE 8L AND 15L MOD PERISCOPE. 0 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 2090-01-089-4652 has DEMIL Code B. 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.