AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Nut Self Locking Extended Washer |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-488-9137 (004889137) |
| NCB Code | USA (00) |
| Manufacturer | Harvard Industries Inc, Sps Technologies Inc, Mills Sterling Aerospace Inc, Bell Helicopter Textron Inc, Arnold Engineering, Alcoa Global Fasteners Inc, Fitz Aerospace Llc, Springfield Armory |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| EB048 | harvard industries inc | nut self locking extended washer | RFQ |
| EB048 | sps technologies inc | nut self locking extended washer | RFQ |
| EB048 | mills sterling aerospace inc | nut self locking extended washer | RFQ |
| EB048 | bell helicopter textron inc | nut self locking extended washer | RFQ |
| EB048 | arnold engineering | nut self locking extended washer | RFQ |
| EB-428 | alcoa global fasteners inc | nut self locking extended washer | RFQ |
| 12NH-4 | fitz aerospace llc | nut self locking extended washer | RFQ |
| 7792554 | springfield armory | nut self locking extended washer | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| AAVX | WASHER OUTSIDE DIAMETER | 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM |
| ABKW | OVERALL HEIGHT | 0.334 INCHES NOMINAL |
| ACTA | NUT STYLE | DOUBLE HEXAGON |
| ADEM | WASHER THICKNESS | 0.090 INCHES NOMINAL |
| ASDB | WIDTH ACROSS FLATS | 0.362 INCHES MINIMUM AND 0.377 INCHES MAXIMUM |
| AZKQ | TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| BZRR | THREAD SERIES | UNJF |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 3140 OVERALL OR STEEL COMP 8740 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AISI4130 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AISI4340 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AISI3140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR SAE8740 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL EXCEPT INSERT AND CHROMATE OVERALL EXCEPT INSERT |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5310-00-488-9137, 5310004889137 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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