The Display Assembly, cataloged under National Stock Number 6320-01-118-0551, is classified within Federal Supply Class 6320 (Shipboard Alarm and Signal Systems) of the Alarm, Signal, and Security Detection Systems group. The manufacturer of record is L3 Technologies, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6320-01-118-0551 |
| Primary Part Number | EM2 TYPE 1 |
| Item Name | Display Assembly |
| FSC / FSG | 6320 / 63 — Shipboard Alarm and Signal Systems |
| Manufacturer | L3 Technologies, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EM2 TYPE 1 PRIMARY | L3 Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| EM2TR | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
| EM2 | 5/9 Secondary reference L3 Technologies, Inc. |
| 10-1932-1 ITEM 31 | C/1 Advisory reference — outside the item-of-supply concept L3 Technologies, Inc. |
NSN 6320-01-118-0551 is a Display Assembly, manufactured by L3 Technologies, Inc., classified under FSC 6320, Shipboard Alarm and Signal Systems. Status: active.
NSN 6320-01-118-0551 has 1 manufacturer part number on file: EM2 TYPE 1 (L3 Technologies, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6530-01-470-2903. Verify interchangeability with system specifications before substitution.
Key specifications for EM2 TYPE 1: End Item Identification: TRIDENT SUBMARINE. 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 6320-01-118-0551 has DEMIL Code Q. 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.