AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-625-3892 (006253892) |
| NCB Code | USA (00) |
| Manufacturer | The Boeing Company, Standard Locknut Incorporated, Mcmellon Bros Incorporated |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| BACW10BW25 | the boeing company | washer key | RFQ |
| BACW10BW25 | standard locknut incorporated | washer key | RFQ |
| BACW10BW25 | mcmellon bros incorporated | washer key | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 2.963 INCHES MINIMUM AND 2.983 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 3.450 INCHES MINIMUM AND 3.470 INCHES MAXIMUM |
| ABLC | EXTERNAL STRAIGHT KEY WIDTH | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| ABLJ | INTERNAL STRAIGHT KEY WIDTH | 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| ABLQ | DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 1.326 INCHES MINIMUM AND 1.346 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 3.612 INCHES MINIMUM AND 3.632 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 4 |
| ABMR | INTERNAL KEY QUANTITY | 2 |
| ABPX | MATERIAL THICKNESS | 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES BOTTOM |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES TOP |
| FEAT | SPECIAL FEATURES | INTERNAL KEYS 180 DEG APART OFFSET 13 DEG 57 MIN 56 SEC FROM CENTER LINE OF EXTERNAL KEYS |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16332,TYPE 3,CLASS 4A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-00-625-3892, 5310006253892 | ||||
| 5365-01-101-3819 (5365011013819) | 5305-01-006-9246 (5305010069246) | 5310-00-639-2818 (5310006392818) | 5310-01-332-9051 (5310013329051) | |
| 5330-01-399-2381 (5330013992381) | 5340-01-496-5144 (5340014965144) | 5342-00-326-6390 (5342003266390) | 5305-01-361-1154 (5305013611154) | |
| 5305-01-516-4729 (5305015164729) | 5330-15-007-8953 (5330150078953) | 5340-01-078-1350 (5340010781350) | 5310-01-471-5429 (5310014715429) | |
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