The Matrix Assembly, cataloged under National Stock Number 2935-01-203-1861, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2935-01-203-1861 |
| Primary Part Number | 736445B |
| Item Name | Matrix Assembly |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| FSC Application Data | ENGINE COOLING SYSTEM COMPONENTS,AIRCRAFT |
| General Characteristics Item Description | 10.674 IN. LG; C/O TUBEPLATE 736446,12 SPACERS 736447,2 RODS 736448,2 STUDS 736449,6 FLOW PLATES 737290-1 -2,6 BAFFLES 736452 3 4,FERRULE 58288,217 MATRIX U TUBES 736455-1 THRU 736455-10,2 NUTS,LOCKING IN |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 736445B PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 736445 | 5/9 Secondary reference U.S. Government activity |
| 736445A | 5/9 Secondary reference U.S. Government activity |
| 736445B | 3/9 Design control — primary reference U.S. Government activity |
NSN 2935-01-203-1861 is a Matrix Assembly, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-01-203-1861 has 1 manufacturer part number on file: 736445B (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 736445B: FSC Application Data: ENGINE COOLING SYSTEM COMPONENTS,AIRCRAFT; General Characteristics Item Description: 10.674 IN. LG; C/O TUBEPLATE 736446,12 SPACERS 736447,2 RODS 736448,2 STUDS 736449,6 FLOW PLATES 737290-1 -2,6 BAFFLES 736452 3 4,FERRULE 58288,217 MATRIX U TUBES 736455-1 THRU 736455-10,2 NUTS,LOCKING IN; Criticality Code Justification: FEAT; Special Features: FLIGHT SAFETY CRITICAL AIRCRAFT PART. 3 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 2935-01-203-1861 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.