The Screen,filter Bleed Screw, cataloged under National Stock Number 1660-01-021-7881, 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 Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 2 specifications, 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-021-7881 |
| Primary Part Number | 91610-8 |
| Item Name | Screen,filter Bleed Screw |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| FSC Application Data | WIRING AND EQUIPMENT INSTALLATIONP-N 204-50000,AIRCRAFT,MODEL NO. E3A |
| General Characteristics Item Description | MATERIAL,TAB MESH,56S ALUM WIRE CLOTH,DIMENSIONS,OUTSIDE DIA. 0.38 IN.PORM 0.01,TAB MESH NO. 50 SCREEN WIRE DIA. 0.009 IN. 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 |
|---|---|
| 91610-8 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
NSN 1660-01-021-7881 is a Screen,filter Bleed Screw, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-021-7881 has 1 manufacturer part number on file: 91610-8 (Honeywell International Inc. Div Aerospace - Torrance).
2 possible matches (shared part number, not a government interchangeability claim): 6515-01-188-5339, 5306-01-420-6638. Verify interchangeability with system specifications before substitution.
Key specifications for 91610-8: FSC Application Data: WIRING AND EQUIPMENT INSTALLATIONP-N 204-50000,AIRCRAFT,MODEL NO. E3A; General Characteristics Item Description: MATERIAL,TAB MESH,56S ALUM WIRE CLOTH,DIMENSIONS,OUTSIDE DIA. 0.38 IN.PORM 0.01,TAB MESH NO. 50 SCREEN WIRE DIA. 0.009 IN. IN; End Item Identification: CONTROLLER,PART NO. 809960-10. 2 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 1660-01-021-7881 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.