We've received your request for 321250 (described as Pulley Groove), manufactured by Hamilton Sundstrand Corporation with CAGE code 73030. This part is registered under NSN 3020-00-098-1781, classified in FSG 30 Mechanical Power Transmission Equipment / FSC 3020 Gears Pulleys Sprockets and Transmission Chain. Our verification process will confirm traceability through supporting identifiers including NIIN 00-098-1781, NCB code 00 (origin: USA), and INC 08109. Please submit your formal quotation request to proceed.
Thank you for choosing Aerospace Exchange for your 321250 requirements. We specialize in authenticated aerospace components, offering both NSN-tracked military parts and commercial equivalents, all validated through our rigorous sourcing protocols.
How to Begin the Quotation Process
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 3020-00-098-1781 Item PartTypeName: PULLEY,GROOVE | 3020 | 000981781 | 0 | N | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | U | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| 321250 | C | 2 | 3 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUJ | SPLINE MAJOR DIAMETER | 0.682 INCHES NOMINAL |
| ABGA | GROOVE DEPTH | 0.187 INCHES NOMINAL |
| ABHE | OUTSIDE DIAMETER | 4.375 INCHES NOMINAL |
| ABKG | BOLT CIRCLE DIAMETER | 2.500 INCHES NOMINAL |
| ABSA | SPLINE QUANTITY | 12 |
| ABSC | SPLINE MINOR DIAMETER | 0.560 INCHES MINIMUM AND 0.563 INCHES MAXIMUM |
| AGGP | DRILLED HOLE DIAMETER | 0.191 INCHES MINIMUM AND 0.194 INCHES MAXIMUM |
| AGGS | V GROOVE ANGLE IN DEG | 30.0 |
| AHYF | SECURING HOLE QUANTITY | 18 |
| ANNQ | MATERIAL AND LOCATION | ALUMINUM ALLOY,24ST,ALUMINUM CO OF AMERICA OR ALUMINUM ALLOY,AMS 4037,OVERALL |
| AQPL | FACE WIDTH | 0.225 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| ARJD | DESIGN FORM | PLAIN |
| ASBP | BORE TYPE | INVOLUTE SPLINE |
| AWJQ | BEARINGS | NOT INCLUDED |
| AXFG | SPLINE PRESSURE ANGLE IN DEG | 30.0 |
| AXFH | SPLINE LENGTH | 0.223 INCHES MINIMUM AND 0.225 INCHES MAXIMUM |
| AXHQ | GROOVE QUANTITY | 1 |
| BDTX | SPLINE PITCH DIAMETER | 0.6000 INCHES NOMINAL |
| BFYT | HOLE LOCATION | HOLES EQUALLY SPACED,1ST HOLE IN LINE W/CENTERLINE THRU SPLINE GROOVES WITHIN 0.030 |
| BSNP | SECURING METHOD | DRILLED HOLE |
| BSYG | SPLIT HUB FEATURE | NOT INCLUDED |
| BXSJ | LIGHTENING HOLE | NOT INCLUDED |
| BXSK | INTEGRAL COOLING VANE | NOT INCLUDED |
| BXSM | GROOVE SHAPE | V |
| BYDS | BORE FEATURE | INCLUDED |
| FEAT | SPECIAL FEATURES | SECURING HOLESCOUNTERBORED 0.312 IN. DIABY .037/.077 IN. DEEP,ONERECTANGULAR NOTCH LOCATED IN OUTER EDGE,BASE OF NOTCH 1.530/1.540 IN. FROM CENTER,0.498/0.501 IN. W |
| SFTT | SURFACE TREATMENT | PAINT |
| STYL | STYLE DESIGNATOR | PLAIN |
| End Use : 21180 | Industrial machines, other |
|---|---|
| Schedule B : 8487900080 (NAICS 333999) | Machinery parts not containing electrical features, and not specified or included elsewhere in chapter 84, except ships propellers |
| SITC : 74999 | Machinery parts, not containing electrical connectors, insulators, coils, contacts or other electrical features, n.E.S. |
| CRITL | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
|---|---|
| HMIC | N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials. |
| PMIC | U - Precious metal content is unknown |
| AAC | J |
|---|---|
| Classification Control | U |
| MGMT_CTL | J2200x- |
| Quantity per pack | 1 |
| Repariability | This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item. |
| Shelf Life | N/A |
| SOS | Sms |
| Unit of Measure | Ea |
| ACC: | V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing |
|---|---|
| ADC: | A - Shipment is not a consolidation and does not exceed 84 inches in any dimension. |
| LTL: | Q - 70.0 |
| NMFC: | 127320 - Pulleys/sheaves, noi |
| SHC: | 9 - Other or no special handling required (sh) |
| TCC: | Z - No special type of cargo code applicable |
| WCC: | 593 - Motors and parts, (machinery and parts),(less than 35 feet) |
![]() |
AS9120B and ISO 9001:2015 |
![]() |
Aviation Suppliers Association Member |
![]() |
FAA AC 0056B Accredited |
![]() |
AS 6081:2012 Certification |
![]() |
ESD S20.20-2014 Certification |
Don’t forget That We offer 24/7 Service, Competitive Prices, and Fast Deliveries. We Hope You'll Make Us Your One-Stop Purchasing Solution!
Request for Quote