| Item Name | Washer Flat |
| INC Code | 13393 |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-220-0631 (012200631) |
| NCB Code | USA (01) |
| Manufacturer | Bokar Mfg Co, Nimikkeistokeskus Ncb Finland, Rockwell Collins Aerospace |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| AAUB | HOLE DIAMETER | 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| ADAV | OVERALL DIAMETER | 0.550 INCHES MINIMUM AND 0.575 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 321 OR STEEL COMP 323 OR STEEL COMP 347 OR STEEL COMP |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5310-01-220-0631, 5310012200631 | ||||
| 5310-01-011-9703 (5310010119703) | 5310-01-631-4489 (5310016314489) | 5310-00-020-9053 (5310000209053) | 5310-01-041-3831 (5310010413831) | |
| 5310-01-180-5326 (5310011805326) | 5310-01-187-5440 (5310011875440) | 5310-00-092-6831 (5310000926831) | 5310-01-210-4885 (5310012104885) | |
| 5310-00-474-5240 (5310004745240) | 5310-00-474-3114 (5310004743114) | 5310-00-159-9146 (5310001599146) | 5310-01-528-9271 (5310015289271) | |
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ESD S20.20-2014 Certification |
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