The Rotor Assembly,fan, cataloged under National Stock Number 1615-01-221-2603, is classified within Federal Supply Class 1615 (Helicopter Rotor Blades, Drive Mechanisms and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1615-01-221-2603 |
| Primary Part Number | 21E41-2 |
| Item Name | Rotor Assembly,fan |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| 21E41-2 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 21E41-2 | 5/9 Secondary reference Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| 21E41-2 | 5/9 Secondary reference Grimes Aerospace Company |
NSN 1615-01-221-2603 is a Rotor Assembly,fan, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
NSN 1615-01-221-2603 has 1 manufacturer part number on file: 21E41-2 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 21E41-2: Special Features: ACTION ID 45542054; End Item Identification: AIRCRAFT MODEL SH-60B. 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 1615-01-221-2603 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.