The Adapter,special, cataloged under National Stock Number 2040-00-896-6434, 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. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-00-896-6434 |
| Primary Part Number | B566-250 |
| Item Name | Adapter,special |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| General Characteristics Item Description | COPPER ALOY,QQ-P-330 ALLOY 510; 1.500 IN. FLANGE DIA; 0.6869 IN. MIN AND 0.6874 IN. MAX BODY DIA; 0.750 IN. OVERALL LG; 0.629 IN. BODY LG; FLANGE HAS FLAT ON ONE SIDE; 0.5628 IN. MIN AND 0.5630 IN. MAX HOLE DRILLED THRU LG; THREE HOLES 0.1800 IN. DIA,CSK TO 0.343 IN. DIA,LOCATED ON FLANGE IN |
| 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 |
|---|---|
| B566-250 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 566B004886 | C/1 Advisory reference — outside the item-of-supply concept L3 Technologies, Inc. Div L3 Keo |
| B566-250 | 5/9 Secondary reference Chatham Precision Inc |
NSN 2040-00-896-6434 is a Adapter,special, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-00-896-6434 has 1 manufacturer part number on file: B566-250 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for B566-250: General Characteristics Item Description: COPPER ALOY,QQ-P-330 ALLOY 510; 1.500 IN. FLANGE DIA; 0.6869 IN. MIN AND 0.6874 IN. MAX BODY DIA; 0.750 IN. OVERALL LG; 0.629 IN. BODY LG; FLANGE HAS FLAT ON ONE SIDE; 0.5628 IN. MIN AND 0.5630 IN. MAX HOLE DRILLED THRU LG; THREE HOLES 0.1800 IN. DIA,CSK TO 0.343 IN. DIA,LOCATED ON FLANGE IN. 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 2040-00-896-6434 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.