The Retainer,screw, cataloged under National Stock Number 1660-00-407-3248, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Drager Safety Ag & Co. Kgaa. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Retainer,screw |
| FSC / FSG | 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16) |
| Manufacturers | Drager Safety Ag & Co. Kgaa (CAGE C5810) |
| Parameter | Value |
|---|---|
| NSN | 1660-00-407-3248 |
| Primary Part Number | E21946-01 |
| Item Name | Retainer,screw |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Drager Safety Ag & Co. Kgaa |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| E21946-01 | Drager Safety Ag & Co. Kgaa (DEU) |
| Reference | Meaning |
|---|---|
| E21946-01 | 5/9 Secondary reference B/e Aerospace Systems Gmbh Div Life Support Systems Europe |
| 1620550-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-00-407-3248 is a Retainer,screw, manufactured by Drager Safety Ag & Co. Kgaa, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-407-3248 has 1 manufacturer part number on file: E21946-01 (Drager Safety Ag & Co. Kgaa).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-022-2286. 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.
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.