The Bellmouth Assembly,engine Test F, cataloged under National Stock Number 4920-00-601-5461, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4920-00-601-5461 |
| Primary Part Number | E4241 |
| Item Name | Bellmouth Assembly,engine Test F |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| E4241 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 4920-00-601-5461 is a Bellmouth Assembly,engine Test F, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-601-5461 has 1 manufacturer part number on file: E4241 (The Boeing Company Div Legacy Am&m).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-578-9637. Verify interchangeability with system specifications before substitution.
Key specifications for E4241: Part Name Assigned by Controlling Agency: BELLMOUTH, RUNUP. 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.
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.