The Window,observation, cataloged under National Stock Number 9330-01-274-2477, is classified within Federal Supply Class 9330 (Plastics Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Hoffman Engineering Co Div of Federal Cartridge Corp. Government technical data includes 5 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 | 9330-01-274-2477 |
| Primary Part Number | APWK53NF |
| Item Name | Window,observation |
| FSC / FSG | 9330 / 93 — Plastics Fabricated Materials |
| Manufacturer | Hoffman Engineering Co Div of Federal Cartridge Corp |
| Status | ACTIVE |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE CORNERS |
| Features Provided | FRAME |
| 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 |
|---|---|
| APWK53NF PRIMARY | Hoffman Engineering Co Div of Federal Cartridge Corp (USA) |
NSN 9330-01-274-2477 is a Window,observation, manufactured by Hoffman Engineering Co Div of Federal Cartridge Corp, classified under FSC 9330, Plastics Fabricated Materials. Status: active.
NSN 9330-01-274-2477 has 1 manufacturer part number on file: APWK53NF (Hoffman Engineering Co Div of Federal Cartridge Corp).
Key specifications for APWK53NF: Overall Thickness: 0.250 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: SQUARE CORNERS; Overall Length: 7.500 INCHES NOMINAL IN. 5 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.