The Window,optical Instrument, cataloged under National Stock Number 1240-00-171-4174, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-00-171-4174 |
| Primary Part Number | 230934PC5 |
| Item Name | Window,optical Instrument |
| FSC / FSG | 1240 / 12 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Refraction Index | 9.5230 NOMINAL |
| Material | GLASS LOCATION NOT OTHERWISE SPECIFIED |
| Material Document and Classification | MIL-G-16592, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| FSC Application Data | TELESCOPE MK 69 MOD 0 |
| Polished Surface | BOTH |
| Polished Periphery | NOT PROVIDED |
| Diameter | 9.000 MILLIMETERS NOMINAL MM |
| Thickness | 1.500 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 1240-00-171-4174 is a Window,optical Instrument, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1240 (No Item Name Available). Status: active.
NSN 1240-00-171-4174 has 2 cross-referenced part numbers: 230934PC5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3000053 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
There are 4 known substitutes for 1240-00-171-4174: 4710-01-601-7532, 5305-01-684-6874, 5305-01-685-3899 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 230934PC5: Refraction Index: 9.5230 NOMINAL; Material: GLASS LOCATION NOT OTHERWISE SPECIFIED; Material Document and Classification: MIL-G-16592, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED; FSC Application Data: TELESCOPE MK 69 MOD 0. 8 total characteristics are documented in the Federal Logistics Information System.