Castellated Nut - Thread: 1/4-28, Self-Locking Nut, Lightweight, Cadmium Plated, 450°, F
| Detail | Characteristic | 
| NUT STYLE | SLOTTED HEXAGON | 
| OVERALL HEIGHT | 0.266 INCHES MINIMUM AND 0.296 INCHES MAXIMUM | 
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN | 
| LUBRICATION | SOLUBLE LUBRICANT | 
| MATERIAL | STEEL OVERALL | 
| NOMINAL THREAD SIZE | 0.250 INCHES | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL | 
| SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL | 
| TEMP RATING | 450.0 DEG FAHRENHEIT MAXIMUM | 
| THREAD CLASS | 3B | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD SERIES | UNJF | 
| THREAD QUANTITY PER INCH | 28 | 
| WASHER OUTSIDE DIAMETER | 0.420 INCHES MAXIMUM | 
| WASHER THICKNESS | 0.025 INCHES NOMINAL | 
| WIDTH ACROSS FLATS | 0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM | 
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            | Inventory | N/A {0} | 
| Estimated Ship Date | N/A {N/A} | 
| Inventory Note | N/A Need additional stock? Call (877) 920-1876 or email | 
| Thread Size | N/A 0.2500-28 | 
| Features | N/A Lightweight | 
| Service Temperature | N/A 450 ºF | 
| Industry Standards/Certification | N/A MS14144 | 
| Type | N/A Self-Locking Castellated Nut | 
| Weight | N/A 0.003 lb | 
| Thread MIL-S-8879 | N/A 0.2500-28 | 
| Maximum Dimension A | N/A 0.420 in | 
| Minimum Dimension B | N/A 0.386 in | 
| Minimum Dimension C | N/A 0.348 in | 
| Maximum Dimension H | N/A 0.296 in | 
| Minimum Dimension H | N/A 0.266 in | 
| Maximum Dimension W | N/A 0.315 in | 
| Minimum Dimension W | N/A 0.305 in | 
| Lubricant | N/A Non-Dry Lubricant | 
| NSN | N/A 5310-01-093-2474 | 
| NIIN | N/A 01-093-2474 | 
| Part # Unpunctuated | N/A MS141444 | 
| Minimum Order Note | N/A Minimum order is 5. Must order in increments of 1. | 
| Note | N/A Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment. | 
| California Residents | N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. | 
 
 


