The Window,observation, cataloged under National Stock Number 9330-01-425-1985, is classified within Federal Supply Class 9330 (Plastics Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Technical Wire Products, Llc Dba Twp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 9330-01-425-1985 |
| Primary Part Number | 71-90959-A |
| Item Name | Window,observation |
| FSC / FSG | 9330 / 93 — Plastics Fabricated Materials |
| Manufacturer | Technical Wire Products, Llc Dba Twp |
| Status | ACTIVE |
| Surface Finish | FINE FINISHED |
| Overall Thickness | 0.380 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE CORNERS |
| Material Document and Classification | MIL-P-5425 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | PLASTIC ACRYLIC |
| 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 |
|---|---|
| 71-90959-A PRIMARY | Technical Wire Products, Llc Dba Twp (USA) |
| Reference | Meaning |
|---|---|
| 5548498 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 9330-01-425-1985 is a Window,observation, manufactured by Technical Wire Products, Llc Dba Twp, classified under FSC 9330, Plastics Fabricated Materials. Status: active.
NSN 9330-01-425-1985 has 1 manufacturer part number on file: 71-90959-A (Technical Wire Products, Llc Dba Twp).
Key specifications for 71-90959-A: Surface Finish: FINE FINISHED; Overall Thickness: 0.380 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: SQUARE CORNERS. 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.