AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-808-5823 (008085823) |
| NCB Code | USA (00) |
| Manufacturer | Alinabal Holdings Corporation, Tokyo Judoi Kogyo K K, Tokyo Judogi Kogyo Co, United Technologies Corporation, Spartan Aerospace Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.265 INCHES NOMINAL |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ADAV | OVERALL DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES TOP |
| CSYM | SURFACE FINISH | 90.0 MICROINCHES OUTER |
| HEAT | HEAT TREATMENT | AS FABRICATED |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES BOTTOM |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES INNER |
| MATT | MATERIAL | STEEL COMP 410 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5504 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Relevant Components for NSN - 5310-00-808-5823, 5310008085823 | ||||
| 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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