The Plate,diaphragm Retainer, cataloged under National Stock Number 1660-01-012-6478, 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. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1660-01-012-6478 |
| Primary Part Number | 119879 |
| Item Name | Plate,diaphragm Retainer |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,2.75 IN. NOM. O/D DIA,0.125 IN. NOM. THK IN |
| 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 |
|---|---|
| 119879 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| 119879 | Boeing Distribution Services X, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 119879 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-01-012-6478 is a Plate,diaphragm Retainer, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-012-6478 has 2 manufacturer part numbers on file: 119879 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 119879 (Boeing Distribution Services X, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-013-3481. Verify interchangeability with system specifications before substitution.
Key specifications for 119879: General Characteristics Item Description: ALUMINUM ALLOY,2.75 IN. NOM. O/D DIA,0.125 IN. NOM. THK IN; End Item Identification: VALVE SHUTOFF,P/N 396308-1-1. 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 1660-01-012-6478 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.