The Adapter Assembly,interface Devic, cataloged under National Stock Number 4920-01-142-6559, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is The Boeing Company Div Legacy Am&m. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-142-6559 |
| Primary Part Number | 41A21000-001 |
| Item Name | Adapter Assembly,interface Devic |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Reference Data and Literature | TO 35-1-271-2 |
| 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 |
|---|---|
| 41A21000-001 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| R-TBD-81 | 5/9 Secondary reference The Boeing Company Dba Boeing |
NSN 4920-01-142-6559 is a Adapter Assembly,interface Devic, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-142-6559 has 1 manufacturer part number on file: 41A21000-001 (The Boeing Company Div Legacy Am&m).
Key specifications for 41A21000-001: Reference Data and Literature: TO 35-1-271-2; Special Features: CONSISTS OF WELDED ALUMINUM ASSY TO SUPPORT COMPONENT AND MATE W/NO.2 OSE IDENTIFIER; Part Name Assigned by Controlling Agency: ADAPTER ASSEMBLY-POSITIONING, HEAT EXCHANGER, AIR TO LIQUID, COMPRESSOR DISCHARGE; End Item Identification: B-1B ACFT AGE. 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 4920-01-142-6559 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.