The Window,observation, cataloged under National Stock Number 9330-01-274-4766, is classified within Federal Supply Class 9330 (Plastics Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Lockheed Martin Corporation Dba Lockheed Martin Government. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9330-01-274-4766 |
| Primary Part Number | 297-13880-1 |
| Item Name | Window,observation |
| FSC / FSG | 9330 / 93 — Plastics Fabricated Materials |
| Manufacturer | Lockheed Martin Corporation Dba Lockheed Martin Government |
| Status | ACTIVE |
| Overall Thickness | 0.124 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE CORNERS |
| Features Provided | CONDUCTIVE COATING AND LIGHT REDUCING |
| Ply Quantity | 3 |
| Material | PLASTIC ALLYL |
| 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 |
|---|---|
| 297-13880-1 | Lockheed Martin Corporation Dba Lockheed Martin Government (USA) |
| Reference | Meaning |
|---|---|
| 297-13880-1 | 3/9 Design control — primary reference Technical Wire Products, Llc Dba Twp |
NSN 9330-01-274-4766 is a Window,observation, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Government, classified under FSC 9330, Plastics Fabricated Materials. Status: active.
NSN 9330-01-274-4766 has 1 manufacturer part number on file: 297-13880-1 (Lockheed Martin Corporation Dba Lockheed Martin Government).
Key specifications for 297-13880-1: Overall Thickness: 0.124 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: SQUARE CORNERS; Overall Length: 12.936 INCHES MINIMUM AND 13.000 INCHES MAXIMUM IN. 6 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.