Description
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M32C / M32CE1 Tank Gunner’s Periscope Daylight Body Assembly P/N 10516576
The M32C / M32CE1 Tank Gunner’s Periscope Daylight Body Assembly P/N 10516576 is the visible-light sighting module used in U.S. M32C and M32CE1 tank gunner’s periscopes. Identified by NSN 1240-00-938-3047, it houses the periscope’s 8X daylight optical system.
This is the daylight body assembly only. It is not a complete periscope and does not include the periscope head or the separate night-vision body or elbow module.
Historical Significance
The M32-series tank gunner’s periscope was built around separate optical modules for daylight and night observation. Army maintenance literature describes the daylight body as an independent collimated unit installed in the left opening of the periscope head.
Army repair-parts manuals cataloged P/N 10516576 for both the M32C and M32CE1, while military specification MIL-B-50645 defined it as a modular body assembly for those two periscope models. This shared application made the daylight body a distinct replacement assembly within the military fire-control supply system.
M32C and M32CE1 Periscope Application
The Army maintenance manual identifies the daylight body as the housing for the visible 8X monocular sighting system. Its optical arrangement includes an etched aiming reticle, an adjustable diopter eyepiece, and an incandescent lamp for reticle illumination.
TM 9-1240-379-34P lists 10516576 as the daylight body assembly for both the M32C and M32CE1. TM 9-2350-222-20P-2 likewise illustrates it as the M32C and M32CE1 Periscope Daylight Body Assembly, and its parts-number index links P/N 10516576 to NSN 1240-00-938-3047.
What This Item Is and Does
The M32C / M32CE1 Tank Gunner’s Periscope Daylight Body Assembly P/N 10516576 provides the periscope’s visible-light, 8X sighting channel. When installed in its parent periscope, the module receives the daylight image from the head assembly and presents it through the adjustable eyepiece with the illuminated aiming reticle.
An integral filter selector provides clear, neutral, amber, and red viewing positions. The daylight body is a self-contained periscope module, but it requires the associated head and other periscope components to form a complete M32C or M32CE1 assembly.
Key Features
- Item: Tank gunner’s periscope daylight body assembly
- Part number: 10516576
- NSN: 1240-00-938-3047
- Applications: M32C and M32CE1 tank gunner’s periscopes
- Optical system: Visible-light 8X monocular sight
- Field of view: 8 degrees
- Eyepiece: Adjustable diopter
- Reticle: Etched aiming reticle with incandescent illumination
- Filter selector: Clear, neutral, amber, and red positions
- Cast marking: ASSEMBLY 10516590
- Scope: Daylight body only; complete periscope, head assembly, and night-vision module are not included
Why This Item Matters
This assembly is identified by an exact Army part-number and NSN match and by original repair-parts illustrations that assign it to both the M32C and M32CE1. Those records distinguish it from the complete periscope and from the separate night-viewing components.
Its combination of military optical engineering, a cataloged fire-control application, and a detailed original Army illustration makes it a focused display or research piece for collectors of armored-vehicle sights and U.S. military optical equipment.
About This Item
The offered item is one M32C / M32CE1 Tank Gunner’s Periscope Daylight Body Assembly, cataloged as P/N 10516576 and NSN 1240-00-938-3047. It is the 8X visible-light module only, not a complete periscope or night-vision assembly.
The cast marking ASSEMBLY 10516590 is distinct from the Army’s cataloged replacement-part number. It appears to identify an internal casting or subassembly rather than supersede the documented P/N 10516576 identity.
All items are opened from the original packaging to verify its condition before shipment. If your prefer to receive an item in its original, unopened packaging, please indicate your request in the order comments at checkout. Please Note: If you request an item in its original, unopened packaging, we are unable to verify the item's condition prior to shipment.
Ideal For
This documented U.S. military optical assembly is well suited for:
- U.S. armored-vehicle and tank fire-control collections
- M32-series periscope restoration reference
- Military museums and ordnance technology exhibits
- Collectors of vintage military optics
- Technical study of modular tank sight assemblies
- Film, educational, and display projects requiring an authentic periscope component
Approx length 9", Approx width 5", Approx height 7", Approx weight 5lbs.
Pictures are stock images of our inventory. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item's general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.
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