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 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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