The Window,observation, cataloged under National Stock Number 9340-00-573-6858, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Smiths Detection Inc. Dba Smiths Detection Inc Casc. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-00-573-6858 |
| Primary Part Number | 522929 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Smiths Detection Inc. Dba Smiths Detection Inc Casc |
| Status | ACTIVE |
| Overall Thickness | 0.088 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE CORNERS |
| Material Document and Classification | MIL-M-10851,CLASS 3 MIL SPEC SINGLE MATERIAL RESPONSE |
| Ply Quantity | 1 |
| Material | PLASTIC |
| 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 |
|---|---|
| R963CR80 | Dorer Engineering Inc Dba O J Rodgers Company (USA) |
| 522929 PRIMARY | Smiths Detection Inc. Dba Smiths Detection Inc Casc (USA) |
| Reference | Meaning |
|---|---|
| S522929 | 5/9 Secondary reference Smiths Detection Inc. Dba Smiths Detection Inc Casc |
| 522929 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| S522929 | 5/2 Secondary reference U.S. Government activity |
NSN 9340-00-573-6858 is a Window,observation, manufactured by Smiths Detection Inc. Dba Smiths Detection Inc Casc, classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-00-573-6858 has 2 manufacturer part numbers on file: R963CR80 (Dorer Engineering Inc Dba O J Rodgers Company), 522929 (Smiths Detection Inc. Dba Smiths Detection Inc Casc).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-427-4988. Verify interchangeability with system specifications before substitution.
Key specifications for 522929: Overall Thickness: 0.088 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN; Material Transparency: CLEAR; Style Designator: SQUARE CORNERS; Material Document and Classification: MIL-M-10851,CLASS 3 MIL SPEC SINGLE MATERIAL RESPONSE. 6 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.