The Tube,drain Turbine, cataloged under National Stock Number 2840-00-396-5598, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Tube,drain Turbine |
| FSC / FSG | 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components (FSG 28) |
| Manufacturers | Honeywell Intl Inc Defense Avionics Systems (CAGE 55972); Hyspan Precision Products, Inc. (CAGE 70510) |
| Parameter | Value |
|---|---|
| NSN | 2840-00-396-5598 |
| Primary Part Number | HD1538B |
| Item Name | Tube,drain Turbine |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| 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 |
|---|---|
| HD1538B PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| AT162 | Hyspan Precision Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HD1538B | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 2840-00-396-5598 is a Tube,drain Turbine, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-396-5598 has 2 manufacturer part numbers on file: HD1538B (Honeywell Intl Inc Defense Avionics Systems), AT162 (Hyspan Precision Products, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-118-1898, 2510-01-419-3609. 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.