| 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, National Aerospace Standards Com, Military Standards Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 164-1041-11 | atec inc | nut self locking castellated hex | 09552 | RFQ |
| MS21045C8S | national aerospace standards com | nut self locking castellated hex | 80205 | RFQ |
| MS21045C8S | military standards corp | nut self locking castellated hex | 96906 | 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 | ||||
| 5325-01-474-4172 (5325014744172) | 5305-00-005-0050 (5305000050050) | 5305-01-081-2450 (5305010812450) | 5360-00-248-8834 (5360002488834) | |
| 5340-01-369-8169 (5340013698169) | 5305-00-899-3578 (5305008993578) | 5330-00-593-8695 (5330005938695) | 5305-01-514-9340 (5305015149340) | |
| 5340-01-702-5703 (5340017025703) | 5360-00-920-9595 (5360009209595) | 5340-01-691-6457 (5340016916457) | 5306-01-269-7435 (5306012697435) | |
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