| Item Name | Nut Self Locking Castellated Hex |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-338-8183 (013388183) |
| NCB Code | USA (01) |
| Manufacturer | Atec Inc, Military Standards Corp, National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 164-1041-11 | atec inc | nut self locking castellated hex | 09552 | RFQ |
| MS21045C8S | military standards corp | nut self locking castellated hex | 96906 | RFQ |
| MS21045C8S | national aerospace standards com | nut self locking castellated hex | 80205 | RFQ |
| NASM21045C8S | national aerospace standards com | nut self locking castellated hex | 80205 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADEA | NUT HEIGHT | 0.575 INCHES MINIMUM AND 0.610 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 0.500 INCHES |
| AAJD | THREAD CLASS | 3B |
| ACTA | NUT STYLE | CASTELLATED,HEXAGON |
| BZRR | THREAD SERIES | UNJF |
| CRTM | BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| AZKQ | TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CRSQ | COUNTERSINK ANGLE | 88.0 DEGREES NOMINAL FIRST END |
| Relevant Components for NSN - 5310-01-338-8183, 5310013388183 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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