AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Convex |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-637-3400 (006373400) |
| NCB Code | USA (00) |
| Manufacturer | Stromberg E A Co, Sikorsky Aircraft Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| S1620-61545 | stromberg e a co | washer convex | RFQ |
| S1620-61545 | sikorsky aircraft corporation | washer convex | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| CSYM | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES |
| FEAT | SPECIAL FEATURES | 45 DEG,0.075 CHAMFER AT BORE ON FLAT SURFACE |
| HEAT | HEAT TREATMENT | AS FABRICATED |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | CONVEX |
| Relevant Components for NSN - 5310-00-637-3400, 5310006373400 | ||||
| 5331-01-657-5231 (5331016575231) | 5330-01-205-4045 (5330012054045) | 5315-01-471-7425 (5315014717425) | 5340-01-529-8563 (5340015298563) | |
| 5365-01-410-8416 (5365014108416) | 5310-00-021-9774 (5310000219774) | 5330-01-647-7489 (5330016477489) | 5310-01-197-3340 (5310011973340) | |
| 5365-00-958-7449 (5365009587449) | 5340-01-481-5050 (5340014815050) | 5310-00-619-4502 (5310006194502) | 5340-00-293-6497 (5340002936497) | |
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