ASAP Aviation Procurement is pleased to announce that part number 799638 of NSN 6650-00-157-4138 is now available and in stock. We can get you one of the fastest and most competitive quotes on this part. Part number 799638 is a Lens Optical Instru manufactured by Keuffel And Esser Co under CAGE Code 74067. Simply fill out the Request for Quote (RFQ) form provided here to get started on your quote. In order to make sure that we get you your quote in a timely manner, please take the time to make sure that all fields are completely filled out, particularly the asterisk-marked (*) fields like Parts Needed By and Quantity (ea).
| MRC | Criteria | Characteristic |
|---|---|---|
| CTKW | ELEMENT LEFT SURFACE RADIUS | 117.4 MILLIMETERS AND -45.1 MILLIMETERS |
| BMLY | AXIAL THICKNESS | 6.0 MILLIMETERS NOMINAL AND 3.0 MILLIMETERS NOMINAL |
| BMMN | COMPOUND LENS OVERALL AXIAL THICKNESS | 9.0 MILLIMETERS NOMINAL |
| BMMS | EQUIVALENT FOCAL LENGTH | 19.430 CENTIMETERS |
| BMMT | BACK FOCAL LENGTH | 19.250 CENTIMETERS |
| BMMX | REFRACTION INDEX | 1.5055 NOMINAL AND 1.5105 NOMINAL |
| BMMZ | ABBE CONSTANT | 43.500 AND 63.700 |
| BMSD | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| BMSC | COMPOUND LENS STYLE | DOUBLET |
| AGAV | III END ITEM IDENTIFICATION | RANGEFINDER MK42 |
| MATL | MATERIAL | GLASS, OPTICAL, JAN-G-174 |
| CTKX | ELEMENT RIGHT SURFACE RADIUS | 45.1 MILLIMETERS AND 306.3 MILLIMETERS |
| ABMZ | DIAMETER | 31.0 MILLIMETERS NOMINAL |
![]() |
AS9120B and ISO 9001:2015 |
![]() |
Aviation Suppliers Association Member |
![]() |
FAA AC 0056B Accredited |
![]() |
AS 6081:2012 Certification |
![]() |
ESD S20.20-2014 Certification |
Before You Go, Take a look To Our Extensive Range of NSN Parts Catalog. We Provide High Quality NSN Parts with 24/7 Quotation Facility.
Request for Quote