The Pulley,groove, cataloged under National Stock Number 3020-00-528-0511, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Ralmark Co. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3020-00-528-0511 |
| Primary Part Number | 20220A1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Ralmark Co |
| Status | CANCELLED |
| Bore Length | 0.625 INCHES NOMINAL IN |
| Material | STEEL HUB |
| Material Document and Classification | QQ-A-268, T4-CANCELED FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Distance From Outside Flange/rim to Hub End and Location | 0.101 INCHES NOMINAL BOTH ENDS IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 2024 BODY |
| Style Designator | WEBBED OR SPOKED |
| Groove Shape | U |
| Bore Type | STRAIGHT |
| Split Hub Feature | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Counterbore Feature | NOT INCLUDED |
| Hub Outside Diameter | 0.465 INCHES NOMINAL BOTH ENDS IN |
| Lightening Hole | NOT INCLUDED |
| Integral Cooling Vane | NOT INCLUDED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Bearing Quantity | 1 |
| Bearing Type | BALL |
| Bearings | INCLUDED |
| Unable to Decode | UNABLE TO DECODE |
| Design Form | WEBBED |
| Unable to Decode | UNABLE TO DECODE |
| Groove Quantity | 1 |
| Face Width | 0.422 INCHES NOMINAL IN |
| Groove Depth | 0.250 INCHES NOMINAL IN |
| Outside Diameter | 1.755 INCHES NOMINAL IN |
| Groove Radius | 0.097 INCHES NOMINAL IN |
| Groove Width | 0.275 INCHES NOMINAL IN |
| Bore Diameter | 0.314 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20220A1 | Ralmark Co (USA) |
| 20220A1 | Arvan, Inc. Dba Aerospace Division (USA) |
| NAS377A1 | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| AN220A1 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| MS20220A1 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-DTL-7034 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 1220A1H | Clary Corp Dba Clary Corp Div Clary Corporation (USA) |
| 20220A1 | Atco Pulley Corp |
| MIL-DTL-7034/2 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 433-1933 | Nimikkeistokeskus Ncb Finland (FIN) |
NSN 3020-00-528-0511 is a Pulley,groove, manufactured by Ralmark Co, classified under FSC 3020 (No Item Name Available). Status: cancelled.
NSN 3020-00-528-0511 has 10 cross-referenced part numbers: 20220A1 (Ralmark Co), 20220A1 (Arvan, Inc. Dba Aerospace Division), NAS377A1 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), AN220A1 (Aeronautical Standards Group Dept of Navy and Air Force), MS20220A1 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.
There are 10 known substitutes for 3020-00-528-0511: 3020-00-277-1123, 3020-00-277-1124, 3020-00-277-1128 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20220A1: Bore Length: 0.625 INCHES NOMINAL IN; Material: STEEL HUB; Material Document and Classification: QQ-A-268, T4-CANCELED FED SPEC SINGLE MATERIAL RESPONSE BODY; Distance From Outside Flange/rim to Hub End and Location: 0.101 INCHES NOMINAL BOTH ENDS IN. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 3020-00-528-0511 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.