The Window,observation, cataloged under National Stock Number 9330-01-065-4313, is classified within Federal Supply Class 9330 (Plastics Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Lockheed Martin Corp Div Space. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 9330-01-065-4313 |
| Primary Part Number | 47C521046P1 |
| Item Name | Window,observation |
| FSC / FSG | 9330 / 93 — Plastics Fabricated Materials |
| Manufacturer | Lockheed Martin Corp Div Space |
| Status | ACTIVE |
| Fourth Corner Radius | 0.150 INCHES NOMINAL IN |
| First Corner Radius | 0.150 INCHES NOMINAL IN |
| Second Corner Radius | 0.150 INCHES NOMINAL IN |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | ROUNDED CORNERS |
| Material Document and Classification | MIL-P-8184,FINISH A MIL SPEC SINGLE MATERIAL RESPONSE |
| Edge Type | FLAT FINISH |
| Material | PLASTIC |
| Third Corner Radius | 0.150 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ER7E521226ITEM42 | Lockheed Martin Corp Div Space (USA) |
| ER47E521226ITEM42 | Lockheed Martin Corp Div Space (USA) |
| 47C521046P1 PRIMARY | Lockheed Martin Corp Div Space (USA) |
| Reference | Meaning |
|---|---|
| 47C521046P1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ER47E521226ITEM42 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Aerostructures |
| 47C521046P1 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Aerostructures |
NSN 9330-01-065-4313 is a Window,observation, manufactured by Lockheed Martin Corp Div Space, classified under FSC 9330, Plastics Fabricated Materials. Status: active.
NSN 9330-01-065-4313 has 3 manufacturer part numbers on file: ER7E521226ITEM42 (Lockheed Martin Corp Div Space), ER47E521226ITEM42 (Lockheed Martin Corp Div Space), 47C521046P1 (Lockheed Martin Corp Div Space).
Key specifications for 47C521046P1: Fourth Corner Radius: 0.150 INCHES NOMINAL IN; First Corner Radius: 0.150 INCHES NOMINAL IN; Second Corner Radius: 0.150 INCHES NOMINAL IN; Overall Thickness: 0.250 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.