The Grille,metal, cataloged under National Stock Number 1660-01-311-6818, 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 Ge Aviation Systems Llc. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-311-6818 |
| Primary Part Number | 749568-01 |
| Item Name | Grille,metal |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Mounting Hole Quantity | 9 |
| Frame Overall Height | 3.730 INCHES MINIMUM AND 3.770 INCHES MAXIMUM IN |
| Frame Opening Diameter | 2.820 INCHES MINIMUM AND 2.860 INCHES MAXIMUM IN |
| Open Area in Percent | 100.0 |
| Mounting Hole Diameter | 0.128 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN |
| Shape | IRREGULAR |
| Perforation Shape | SQUARE |
| Frame Overall Width | 3.730 INCHES MINIMUM AND 3.770 INCHES MAXIMUM IN |
| Frame Type | FLAT |
| Core Type | PERFORATED METAL |
| Material | ALUMINUM ALLOY OVERALL |
| Frame Overall Thickness | 0.059 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 749568-01 PRIMARY | Ge Aviation Systems Llc (USA) |
NSN 1660-01-311-6818 is a Grille,metal, manufactured by Ge Aviation Systems Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-311-6818 has 1 manufacturer part number on file: 749568-01 (Ge Aviation Systems Llc).
Key specifications for 749568-01: Mounting Hole Quantity: 9; Frame Overall Height: 3.730 INCHES MINIMUM AND 3.770 INCHES MAXIMUM IN; Frame Opening Diameter: 2.820 INCHES MINIMUM AND 2.860 INCHES MAXIMUM IN; Open Area in Percent: 100.0. 12 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 1660-01-311-6818 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.