The Guide,poppet Valve,heat Exchange, cataloged under National Stock Number 1660-00-006-6493, 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 1 specification, 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 | 1660-00-006-6493 |
| Primary Part Number | 801464-1 |
| Item Name | Guide,poppet Valve,heat Exchange |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL NM100,CERAMIC COATING,1.3977 IN. DIA,1.38 IN. LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 801464-1 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
NSN 1660-00-006-6493 is a Guide,poppet Valve,heat Exchange, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-006-6493 has 1 manufacturer part number on file: 801464-1 (Honeywell International Inc. Div Aerospace - Torrance).
2 possible matches (shared part number, not a government interchangeability claim): 3120-01-005-4753, 5998-01-101-8958. Verify interchangeability with system specifications before substitution.
Key specifications for 801464-1: General Characteristics Item Description: STEEL NM100,CERAMIC COATING,1.3977 IN. DIA,1.38 IN. LG IN. 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.
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.