| 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 | Standard Locknut Incorporated, Mcmellon Bros Incorporated, The Boeing Company |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| BACW10BW25 | standard locknut incorporated | washer key | 78507 | RFQ |
| BACW10BW25 | mcmellon bros incorporated | washer key | 05141 | RFQ |
| BACW10BW25 | the boeing company | washer key | 81205 | 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 |
| Components Related to NSN - 5310-00-625-3892, 5310006253892 | ||||
| 5305-00-058-8627 (5305000588627) | 5305-01-464-0977 (5305014640977) | 5310-01-004-6958 (5310010046958) | 5315-01-470-7865 (5315014707865) | |
| 5340-00-015-2268 (5340000152268) | 5305-00-841-3941 (5305008413941) | 5320-00-205-9596 (5320002059596) | 5340-01-656-4589 (5340016564589) | |
| 5330-00-947-5111 (5330009475111) | 5365-01-569-6583 (5365015696583) | 5340-01-514-2291 (5340015142291) | 5315-01-532-4171 (5315015324171) | |
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