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QPL Listed Compounds
Qualified Products List (QPL) listed compounds are compounds for which a manufacturer has received approval to sell to a certain specification. Each compound must complete rigorous independent laboratory testing to receive approval. The Aerospace and Defense industry buys product from only QPL-listed suppliers. The QPL list is maintained by Performance Review Institute (PRI) and the Wright-Patterson Air Force Base Material Laboratory.
| Drawing | Part Number | Material Specification | Parco Compound | Most Recent Approval | Approval Date |
| AS28775 | MS28775-XXX | MIL-P-25732 | 4067-70 | AFML/MX 79-69 | 3/31/1994 |
| AS28778 | MS28778-X(X) | AMS-P-5510 | 4081-90 | PRI Approval Letter #0662 | 4/30/2014 |
| AS29512 AS29513 | MS29512-XX MS29513-XXX | AMS-P-5315 | 4457-65 | PRI Approval Letter #0599 | 8/31/2012 |
AS3208(1) | AS3208-XX AS3209-XXX | AMS7276(2) | 9009-75 | PRI Approval Letter #0246 | 12/20/2010 |
| AS3208 AS3209 | AS3208-XX AS3209-XXX | AMS7276 | 9266-75 | PRI Approval Letter #0598 | 8/31/2012 |
| AS3581(3) | AS3581-XXX | AMS7259(4) | 9009-90 | PRI Approval Letter #0245 | 12/20/2010 |
| AS3569 | AS3569-XXX | AMS7270 | 4466-70 | PRI Approval Letter #0520 | 11/18/2011 |
| AS3578 | AS3578-XXX | AMS7271 | 4465-65 | PRI Approval Letter #0521 | 11/18/2011 |
| AS83461/1 AS83461/2 | MS83461/1-XXX MS83461/2-XXX | AMS-P-83461 | 4367-70 | PRI Approval Letter #0248 | 11/22/2010 |
| AS83485 | - | AMS7287 | 9066-75 | PRI Approval Letter #0660 | 1/31/2016 |
(1)AS3208 and AS3209 supersede MIL-R-83248/1A.
(2)AMS7276 supersedes MIL-R-83248 Type 1 Class 1 and AMS-R-83248 Type 1 Class 1.
(3)AS3581 supersedes MIL-R-83248/2.
(4)AMS7259 supersedes MIL-R-83248 Type 1 Class 2 and AMS-R-83248 Type 1 Class 2.
