The Window,observation, cataloged under National Stock Number 9340-01-326-1258, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Manassas. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-01-326-1258 |
| Primary Part Number | 6936931-1 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Lockheed Martin Corporation Div Rms - Manassas |
| Status | ACTIVE |
| Overall Thickness | 0.183 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Style Designator | CHAMFERED 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 |
|---|---|
| 6936931-1 PRIMARY | Lockheed Martin Corporation Div Rms - Manassas (USA) |
| Reference | Meaning |
|---|---|
| 480860 | C/1 Advisory reference — outside the item-of-supply concept Optical Coating Laboratory, Llc |
| 6936931-1 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rotary and Mission Systems |
NSN 9340-01-326-1258 is a Window,observation, manufactured by Lockheed Martin Corporation Div Rms - Manassas, classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-01-326-1258 has 1 manufacturer part number on file: 6936931-1 (Lockheed Martin Corporation Div Rms - Manassas).
Key specifications for 6936931-1: Overall Thickness: 0.183 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Style Designator: CHAMFERED CORNERS; Overall Length: 11.800 INCHES NOMINAL IN; Overall Width: 11.800 INCHES NOMINAL IN. 3 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.