The Filter Element,fluid, cataloged under National Stock Number 2945-00-005-8609, is classified within Federal Supply Class 2945 (Engine Air and Oil Filters, Cleaners, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Pti Technologies Inc.. Government technical data includes 8 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2945-00-005-8609 |
| Primary Part Number | 21-11599 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 2945 / 29 — Engine Air and Oil Filters, Cleaners, Aircraft Prime Moving |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Body Diameter | 1.250 INCHES NOMINAL IN |
| FSC Application Data | AIRCRAFT ENGINE J85 |
| Body Overall Length | 4.085 INCHES MINIMUM AND 4.105 INCHES MAXIMUM IN |
| Filtration Rating in Microns | 15.0 ABSOLUTE |
| Flow Direction | PARALLEL |
| Design Type | NONREUSABLE |
| Style Designator | CYLINDRICAL W/OUT CONTAINER |
| Body Inside Diameter | 0.670 INCHES NOMINAL 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 |
|---|---|
| 21-11599 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4022T79P01 | 1/2 Source control — Government-approved source U.S. Government activity |
| 21-11599 | 5/9 Secondary reference U.S. Government activity |
| 21-11599 | 5/9 Secondary reference U.S. Government activity |
NSN 2945-00-005-8609 is a Filter Element,fluid, manufactured by Pti Technologies Inc., classified under FSC 2945, Engine Air and Oil Filters, Cleaners, Aircraft Prime Moving. Status: active.
NSN 2945-00-005-8609 has 1 manufacturer part number on file: 21-11599 (Pti Technologies Inc.).
Key specifications for 21-11599: Body Diameter: 1.250 INCHES NOMINAL IN; FSC Application Data: AIRCRAFT ENGINE J85; Body Overall Length: 4.085 INCHES MINIMUM AND 4.105 INCHES MAXIMUM IN; Filtration Rating in Microns: 15.0 ABSOLUTE. 8 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.
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.