The Window,observation, cataloged under National Stock Number 9340-01-464-9964, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Mac Thin Films, Inc. Dba Mac Thin Films Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-01-464-9964 |
| Primary Part Number | 949681 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Mac Thin Films, Inc. Dba Mac Thin Films Inc |
| Status | ACTIVE |
| Overall Thickness | 0.210 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE CORNERS |
| Material | GLASS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 949681 | Naval Surface Warfare Center Dba Port Hueneme Detachent Virginia Beach (USA) |
| 949681 PRIMARY | Mac Thin Films, Inc. Dba Mac Thin Films Inc (USA) |
| Reference | Meaning |
|---|---|
| 393317-1 | 5/9 Secondary reference Raytheon Company Div Rmd Strategic |
| 949681 | 5/9 Secondary reference Navy, United States Department of the Dba Naval Surface Warfare Center Div Naval Surface Warfare Center Crane Division |
| 949681 | 3/9 Design control — primary reference Optical Coating Laboratory, Llc |
| 393317-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 9340-01-464-9964 is a Window,observation, manufactured by Mac Thin Films, Inc. Dba Mac Thin Films Inc, classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-01-464-9964 has 2 manufacturer part numbers on file: 949681 (Naval Surface Warfare Center Dba Port Hueneme Detachent Virginia Beach), 949681 (Mac Thin Films, Inc. Dba Mac Thin Films Inc).
Key specifications for 949681: Overall Thickness: 0.210 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: SQUARE CORNERS; Overall Length: 17.500 INCHES NOMINAL IN. 4 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.
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.