| Item Name | Sprocket Wheel |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 00-173-7384 (001737384) |
| NCB Code | USA (00) |
| Manufacturer | Sikorsky Aircraft Corporation |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 65850-05153 | sikorsky aircraft corporation | sprocket wheel | 78286 | RFQ |
| 65850-05153-101 | sikorsky aircraft corporation | sprocket wheel | 78286 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUH | SPLINE MINOR DIAMETER | 0.550 INCHES MINIMUM AND 0.555 INCHES MAXIMUM |
| AAUJ | SPLINE MAJOR DIAMETER | 0.690 INCHES MINIMUM AND 0.700 INCHES MAXIMUM |
| AAWY | COUNTERBORE DIAMETER | 0.725 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| AAWZ | COUNTERBORE DEPTH | 0.400 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| ABFF | FURNISHED ITEMS | COUNTERBORE |
| ABHE | OUTSIDE DIAMETER | 3.008 INCHES NOMINAL |
| ABHP | OVERALL LENGTH | 1.020 INCHES NOMINAL |
| ABPR | FIRST STEP DIAMETER | 1.560 INCHES NOMINAL AA END |
| ABPS | FIRST STEP LENGTH | 0.740 INCHES NOMINAL AA END |
| ABPU | SECOND STEP LENGTH | 0.170 INCHES NOMINAL AA END |
| ABSA | SPLINE QUANTITY | 12 |
| AGJS | PITCH DIAMETER | 2.869 INCHES NOMINAL |
| ALNC | HUB OUTSIDE DIAMETER | 0.885 INCHES NOMINAL AA END |
| AQPL | FACE WIDTH | 0.110 INCHES NOMINAL |
| ARJD | DESIGN FORM | PLAIN |
| ASBP | BORE TYPE | INVOLUTE SPLINE |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 34.0 ROCKWELL C MINIMUM HUB AND 36.0 ROCKWELL C MAXIMUM HUB |
| AXFG | SPLINE PRESSURE ANGLE IN DEG | 30.0 |
| AXFH | SPLINE LENGTH | 0.450 INCHES NOMINAL |
| BDTX | SPLINE PITCH DIAMETER | 0.6000 INCHES NOMINAL |
| BDYS | COUNTERBORE LOCATION | BOTH ENDS |
| BYDZ | PROTRUDING HUB CHARACTERISTIC | STEPPED |
| BYFL | TEETH ROW QUANTITY | 1 |
| BYFN | TEETH QUANTITY PER ROW | 36 |
| BYFP | ASA STANDARD CHAIN NUMBER | 25 |
| BYFQ | HARDNESS RATING TEST METHOD | ROCKWELL |
| BYFR | TEETH HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| BYGF | TOOTH PITCH | 0.250 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP E4340 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000,COMP 4340,COND C1 MIL SPEC SINGLE MATERIAL RESPONSE |
| SFTT | SURFACE TREATMENT | PHOSPHATE |
| STYL | STYLE DESIGNATOR | PLAIN |
| Relevant Components for NSN - 3020-00-173-7384, 3020001737384 | ||||
| 3040-00-037-4479 (3040000374479) | 3010-01-283-8383 (3010012838383) | 3040-01-167-7076 (3040011677076) | 3040-01-607-0785 (3040016070785) | |
| 3020-00-173-7380 (3020001737380) | 3040-01-271-7503 (3040012717503) | 3040-00-690-2219 (3040006902219) | 3040-01-031-7475 (3040010317475) | |
| 3020-01-289-1372 (3020012891372) | 3040-01-171-1542 (3040011711542) | 3030-01-367-5013 (3030013675013) | 3020-01-281-7479 (3020012817479) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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