| MATERIAL | STEEL NUT |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | LARGE FLANGE RIV-FLOAT; SELF-ALIGNING RIVET NUT, 1/4"-20 INTERNAL THREAD, .027"-.150" MATERIAL THICKNESS |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT GRIP RANGE | +0.027 TO 0.150 INCHES |
| NUT DIAMETER | 0.530 INCHES MAXIMUM |
| NUT LENGTH | 0.798 INCHES MINIMUM AND 0.841 INCHES MAXIMUM |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| SPECIAL FEATURES | BOTTOM THIRD OF BODY IS RIBBED EXTERNALLY; INSTALLED LENGTH: 0.630; INSTALLATION TOOL: MS 50 SPIN-PULL (ANVIL-MA-161-2520RF); MATERIAL: BODY: C1008/1010; NUT: MED. CARBON STEEL; FINISH: BODY AND NUT: ZINC PLATE W/CLEAR TRIVALENT CHROMATE |
| SHANK END TYPE | OPEN |
| SURFACE TREATMENT | ZINC AND CHROMATE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES | UNC |
| HEAD HEIGHT | 0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM |
| HEAD DIAMETER | 0.660 INCHES MINIMUM AND 0.710 INCHES MAXIMUM |
| HEAD STYLE | FLAT |