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| Item Name | Gear Helical |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 00-239-0653 (002390653) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Usm Corp, Westinghouse Electric Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| D2-8551PC103 | northrop grumman systems corporation | gear helical | RFQ |
| D2-8775PC126 | usm corp | gear helical | RFQ |
| D2-8872PC103 | westinghouse electric corp | gear helical | RFQ |
| D2-8853PC126 | usm corp | gear helical | RFQ |
| D2-8772PC103 | westinghouse electric corp | gear helical | RFQ |
| D2-8677PC126 | northrop grumman systems corporation | gear helical | RFQ |
| D2-8772PC103 | usm corp | gear helical | RFQ |
| N12018 | northrop grumman systems corporation | gear helical | RFQ |
| N12018 | westinghouse electric corp | gear helical | RFQ |
| D2-8775PC126 | westinghouse electric corp | gear helical | RFQ |
| D2-8853PC126 | northrop grumman systems corporation | gear helical | RFQ |
| D2-8689PC126 | usm corp | gear helical | RFQ |
| D2-8551PC103 | usm corp | gear helical | RFQ |
| D2-8689PC126 | northrop grumman systems corporation | gear helical | RFQ |
| D2-8689-126 | usm corp | gear helical | RFQ |
| D2-8772PC103 | northrop grumman systems corporation | gear helical | RFQ |
| D2-8677PC126 | westinghouse electric corp | gear helical | RFQ |
| D2-8689PC126 | westinghouse electric corp | gear helical | RFQ |
| D2-8551PC103 | westinghouse electric corp | gear helical | RFQ |
| D2-8775PC126 | northrop grumman systems corporation | gear helical | RFQ |
| D2-8853PC126 | westinghouse electric corp | gear helical | RFQ |
| D2-8677PC126 | usm corp | gear helical | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | PLAIN,SOLID |
| AGJS | PITCH DIAMETER | 8.4938 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 45 |
| ANTP | BORE STYLE | W/ KEYWAY BOTH ENDS |
| CQFM | HARDNESS RATING | 10.0 ROCKWELL C MINIMUM OVERALL AND 20.0 ROCKWELL C MAXIMUM OVERALL |
| CWCD | NOMINAL OUTSIDE DIAMETER | 8.7438 INCHES |
| CWFR | NOMINAL OVERALL LENGTH | 3.750 INCHES |
| CWMW | TEETH TYPE | SINGLE HELIX |
| CWNH | TOOTH FORM | STANDARD |
| CWNM | TOOTH DIRECTION | RIGHT |
| CWPP | PRESSURE ANGLE | 14.5000 DEGREES |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES SECOND END |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.000 INCHES FIRST END |
| CWRM | FACE NOMINAL WIDTH | 2.500 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 5.186 INCHES BOTH ENDS |
| CWSN | KEYWAY NOMINAL WIDTH | 0.621 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 2.922 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| CWTX | HUB NOMINAL DIAMETER | 6.750 INCHES FIRST END |
| CWTX | HUB NOMINAL DIAMETER | 7.000 INCHES SECOND END |
| FEAT | SPECIAL FEATURES | TWO PULLER HOLES 1/2-13 NC THD 7/8 IN. DEEP IN SECOND HUB END |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890,CLASS AN MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | PROTRUDING HUBS |
| Relevant Components for NSN - 3020-00-239-0653, 3020002390653 | ||||
| 3040-99-750-9441 (3040997509441) | 3040-01-309-9880 (3040013099880) | 3020-00-056-1680 (3020000561680) | 3040-01-592-1774 (3040015921774) | |
| 3040-01-340-6053 (3040013406053) | 3040-01-424-7637 (3040014247637) | 3020-00-762-8849 (3020007628849) | 3040-01-411-4890 (3040014114890) | |
| 3020-01-163-7221 (3020011637221) | 3030-00-041-2888 (3030000412888) | 3030-00-421-7151 (3030004217151) | 3040-01-256-3453 (3040012563453) | |
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