The Parts Kit,valve,modulating, cataloged under National Stock Number 1660-00-138-3755, 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 2 specifications, 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-138-3755 |
| Primary Part Number | 651184-1 |
| Item Name | Parts Kit,valve,modulating |
| 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 |
| FSC Application Data | ACFT AIRCONDITIONING SYSTEM |
| General Characteristics Item Description | CONSIST OF WASHER 19,PACKING 36,DIAPHRAGM 4,BEARING BALL 1,SEAL 6,PACKING-RETAINER 6,DIAPHRAGM ASSY 1,PISTON RING 2,CLIP RING 1,PIN 1 |
| 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 |
|---|---|
| 651184-1 | Boeing Distribution Services X, Inc. (USA) |
| 651184-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 651184-1 | 5/9 Secondary reference U.S. Government activity |
| 9835140-10 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 651184-1 | 5/9 Secondary reference System Technical Support Corporation Dba System Technical Support |
| 651184-1 | 5/9 Secondary reference U.S. Government activity |
| 651184-1 | 5/9 Secondary reference Kit Pack Co., Inc. |
| 651184-1 | 5/9 Secondary reference Kitco Llc |
NSN 1660-00-138-3755 is a Parts Kit,valve,modulating, 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 1660-00-138-3755 has 2 manufacturer part numbers on file: 651184-1 (Boeing Distribution Services X, Inc.), 651184-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 651184-1: FSC Application Data: ACFT AIRCONDITIONING SYSTEM; General Characteristics Item Description: CONSIST OF WASHER 19,PACKING 36,DIAPHRAGM 4,BEARING BALL 1,SEAL 6,PACKING-RETAINER 6,DIAPHRAGM ASSY 1,PISTON RING 2,CLIP RING 1,PIN 1; End Item Identification: MODULATING VALVE,P/N 898820-2-1. 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 1660-00-138-3755 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.