| MATERIAL | STEEL COMP 420 OR |
| STEEL COMP 301 OR |
| STEEL COMP 302 OR |
| STEEL COMP 302B OR |
| STEEL COMP 303 OR |
| STEEL COMP 303SE OR |
| STEEL COMP 304 OR |
| STEEL COMP 304L OR |
| STEEL COMP 305 OR |
| STEEL COMP 308 OR |
| STEEL COMP 309 OR |
| STEEL COMP 309S OR |
| STEEL COMP 310 OR |
| STEEL COMP 310S OR |
| STEEL COMP 314 OR |
| STEEL COMP 316 OR |
| STEEL COMP 316L OR |
| STEEL COMP 317 OR |
| STEEL COMP 321 OR |
| STEEL COMP 347 OR |
| STEEL COMP 348 OR |
| STEEL COMP 384 OR |
| STEEL COMP 385 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND |
| 53.0 ROCKWELL C MAXIMUM |
| STYLE DESIGNATOR | SPLIT HELICAL-RIGHT HAND |
| HOLE DIAMETER | 0.255 INCHES MINIMUM AND |
| 0.263 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.489 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.062 INCHES MINIMUM AND |
| 0.072 INCHES MAXIMUM |
| SPECIAL TEST FEATURES | SPECIAL QUALITY CONTROL TESTING |
| NONDEFINITIVE SPEC/STD DATA | B CLASS OR |
| C CLASS AND |
| 2 STYLE |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION |
| CRITICALITY CODE JUSTIFICATION | ZZZY |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-W-84 |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 43689 |
| DESIGN CONTROL REFERENCE | 2670-57 ITEM 82 |