The Head Prism Mount, cataloged under National Stock Number 2040-00-896-9464, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Head Prism Mount |
| FSC / FSG | 2040 — Marine Hardware and Hull Items (FSG 20) |
| Manufacturers | L3 Technologies, Inc. Div L3 Keo (CAGE 34228) |
| Parameter | Value |
|---|---|
| NSN | 2040-00-896-9464 |
| Primary Part Number | D566-125 |
| Item Name | Head Prism Mount |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| D566-125 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 566D004761 | C/1 Advisory reference — outside the item-of-supply concept L3 Technologies, Inc. Div L3 Keo |
| D566-125 | 5/9 Secondary reference Chatham Precision Inc |
NSN 2040-00-896-9464 is a Head Prism Mount, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-00-896-9464 has 1 manufacturer part number on file: D566-125 (L3 Technologies, Inc. Div L3 Keo).
1 possible match (shared part number, not a government interchangeability claim): 1240-01-470-9184. Verify interchangeability with system specifications before substitution.
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 2040-00-896-9464 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.