The Tube Assembly,fle,i, cataloged under National Stock Number 2840-00-396-5591, 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 Hyspan Precision Products, Inc.. 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2840-00-396-5591 |
| Primary Part Number | AT324 |
| Item Name | Tube Assembly,fle,i |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Hyspan Precision Products, Inc. |
| Status | ACTIVE |
| FSC Application Data | GAS TURBINES AND JET ENGINES,AIRCRAFT |
| 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 |
|---|---|
| AT324 PRIMARY | Hyspan Precision Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 203-1030 | 5/2 Secondary reference U.S. Government activity |
| AT221 | 5/9 Secondary reference Arco Metals Co Div of Atlantic Richfield Co |
| CM100920 | 5/2 Secondary reference U.S. Government activity |
| CM100321 | 5/2 Secondary reference U.S. Government activity |
| CM100321 | 5/9 Secondary reference U.S. Government activity |
| 203-1240 | 5/2 Secondary reference U.S. Government activity |
| CM100920 | 5/9 Secondary reference U.S. Government activity |
NSN 2840-00-396-5591 is a Tube Assembly,fle,i, manufactured by Hyspan Precision Products, Inc., classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-396-5591 has 1 manufacturer part number on file: AT324 (Hyspan Precision Products, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5961-00-878-4678, 5995-00-921-7411, 2540-01-358-9025. Verify interchangeability with system specifications before substitution.
Key specifications for AT324: FSC Application Data: GAS TURBINES AND JET ENGINES,AIRCRAFT. 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.