| BARREL STYLE | STRAIGHT RECTANGULAR WITH ROUND ENDS TYPE |
| BARREL WIDTH | 0.393 INCHES MINIMUM AND 0.397 INCHES MAXIMUM |
| BARREL HEIGHT | 0.910 INCHES MINIMUM AND 0.920 INCHES MAXIMUM |
| BARREL LENGTH | 1.529 INCHES MINIMUM AND 1.535 INCHES MAXIMUM |
| COLOR | BLACK OVERALL |
| FLANGE LENGTH | 2.007 INCHES MINIMUM AND 2.013 INCHES MAXIMUM |
| FLANGE STYLE | FLANGE |
| FLANGE WIDTH | 0.912 INCHES MINIMUM AND 0.918 INCHES MAXIMUM |
| NONDEFINITIVE SPEC/STD DATA | 5 TYPE AND 3 CLASS AND 1 SIZE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL |
| WASHER STYLE | BARREL TYPE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE FILM OVERALL |