National Item Identification Number

00-764-9252
007649252
6650-00-764-9252
6650007649252

National Stock Number

Item Name

SPACER,OPTICAL ELEMENT

Federal Supply Class

6650

Description

A tubular shaped item designed to maintain a predetermined distance between optical elements, such as lenses, reticles, and the like. The bore may be straight, tapered or counterbored, and may have annular serrations to converge or diverge light rays. The surfaces, which mate with the optics, are usually chamfered, concave, and/or have a specified finish designation in the range of 1 to 125 microinches arithmetical average (AA). See also SPACER, SLEEVE and CELL, OPTICAL ELEMENT.

Commercial and Government Entity Code (Supplier Data)

---

19200

---

---

Reference Numbers (Part Numbers)

7649252

Required Categories

MATERIAL
STYLE DESIGNATOR
OVERALL LENGTH
STRAIGHT BORE INSIDE DIAMETER
SERRA

Required Description

ALUMINUM ALLOY
B3 SPACER
0.153 INCHES NOMINAL
0.652 INCHES NOMINAL
0.781 INC