| HEAD DIAMETER | 0.54 INCHES MINIMUM AND 0.60 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PLUG, PROTECTIVE, FLARELESS TUBE, ALUMINUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY OVERALL |
| NOMINAL THREAD SIZE | 0.375 INCHES EXTERNAL |
| SPECIAL FEATURES | MATERIAL IS ALUMINUM 5052 AND IS HEAT TREATED TO -H34. |
| STYLE DESIGNATOR | PLUG, MACHINE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OR CHROMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND EXTERNAL |
| THREAD LENGTH | 0.25 INCHES MINIMUM AND 0.31 INCHES MAXIMUM EXTERNAL |
| THREAD QUANTITY PER INCH | 24 EXTERNAL |
| THREAD SERIES DESIGNATOR | UNF EXTERNAL |