NSN 5340-00-478-0755
Part Details | EXPANSION PLUG
5340-00-478-0755 A relatively thin metallic item, having a concave or cupped contour, designed to effect its own seal by compression against the circumference of a hole. It is used as a blowout plug in boilers, engines, and the like to relieve the pressure created by the expansion of fluids caused by heat or freezing.
Alternate Parts: 10165565, 5340-00-478-0755, 00-478-0755, 5340004780755, 004780755
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | MAR 17, 1972 | 00-478-0755 | 03797 ( PLUG, EXPANSION ) |
REFERENCE DRAWINGS & PICTURES
CONCAVE

Cross Reference | NSN 5340-00-478-0755
Part Number | Cage Code | Manufacturer |
---|---|---|
10165565 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 5340-00-478-0755
Characteristic | Specifications |
---|---|
MATERIAL | STEEL |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-698, C1010-C1030 FED SPEC SINGLE MATERIAL RESPONSE |
SURFACE TREATMENT | CADMIUM |
STYLE DESIGNATOR | CONCAVE |
RADIUS | 7.720 INCHES MINIMUM AND 7.780 INCHES MAXIMUM |
OUTSIDE DIAMETER | 4.495 INCHES MINIMUM AND 4.505 INCHES MAXIMUM |
MATERIAL THICKNESS | 0.124 INCHES MINIMUM AND 0.144 INCHES MAXIMUM |