The Frame,observation Window, cataloged under National Stock Number 5670-01-258-1085, is classified within Federal Supply Class 5670 (Building Components, Prefabricated) of the Construction and Building Materials group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5670-01-258-1085 |
| Item Name | Frame,observation Window |
| FSC / FSG | 5670 / 56 — Building Components, Prefabricated |
| Status | ACTIVE |
| General Characteristics Item Description | O/A 13.0IN. BY 25.5IN.;INS DIM 12.0IN. BY 24.0IN.;4 HOLES C SP 5/16IN. DRILLED AT TIME OF ASSY IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 132183 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5670-01-258-1085 is a Frame,observation Window, classified under FSC 5670, Building Components, Prefabricated. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6210-01-281-2443. Verify interchangeability with system specifications before substitution.
Key specifications for 5670-01-258-1085: General Characteristics Item Description: O/A 13.0IN. BY 25.5IN.;INS DIM 12.0IN. BY 24.0IN.;4 HOLES C SP 5/16IN. DRILLED AT TIME OF ASSY IN. 1 specification is 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.