What a qualified products list is
Some specifications require a product to be tested and approved before anyone may offer it against a contract. The reason is time: the tests that matter for wire, such as thermal aging, fluid immersion and long-term flex, take months, and a program cannot wait for them after award. So the testing is done in advance, once, and the products that pass are entered on a qualified products list, usually shortened to QPL.
Each list belongs to one specification and is kept by a named government office, called the qualifying activity. For SAE AS22759, the main family of fluoropolymer-insulated aircraft wire, that office is in the Naval Air Systems Command. The lists are published electronically in the Qualified Products Database, which is part of the Defense Logistics Agency’s ASSIST system and can be searched by the public.
What a listing records
A wire QPL entry is specific in ways that matter to a buyer.
| Field | Why it matters |
|---|---|
| Government designation | The exact part: specification, slash sheet and, where the list is kept by size, the gauge range |
| Manufacturer’s designation | The maker’s own part number for the qualified product |
| Manufacturer and plant | Qualification belongs to a product made at a named location, identified by a CAGE code |
| Test or qualification reference | The report on which approval was given |
Read the entry at that level of detail. A company qualified for one slash sheet is not qualified for its neighbor, and a company qualified at one plant is not qualified at another.
What a listing proves, and what it does not
It proves that samples of that product, from that plant, passed the qualification tests in the specification, and that the maker has kept the qualification current. Retention is not automatic: the maker must periodically certify to the qualifying activity that the product is unchanged and still being made.
It does not prove that the reel you are holding conforms. Qualification covers the design and the process. Each production lot still has to pass the specification’s conformance inspection, and the evidence for that is the certified test report that ships with the lot.
It does not prove who sold it to you. Qualified wire is widely resold by distributors. The QPL names the maker, so the paper trail from that maker to you is a separate thing to establish.
It does not last forever. Products are removed when a maker stops certifying, closes a plant or fails a retest. A listing checked two years ago is a listing that needs checking again.
How to search it yourself
- Find the specification number on your drawing, including any slash sheet: for example AS22759/16, or M22759/16 in the older form.
- Open the Qualified Products Database. It is reached through the Defense Logistics Agency’s ASSIST
site, and a direct public search exists at the address
qpldocs.dla.mil. - Search by the governing specification. The result is the current list for that document, with a revision date.
- Find your slash sheet and size, and read across to the manufacturers and plants.
- Save the page, with its date, in the file for the purchase. An inspector may ask what the list said on the day you ordered.
Why this register has no military sheet
The database above refused every automated request made while this register was being built, from three different networks. A human with a browser can read it; a script could not. Copies of old lists circulate on other websites, and they go stale without saying so. Publishing names from a copy would put a date-less qualification claim against a company, which is exactly what a register like this must not do. So the military families are explained here and left to the source.
Reading the part number
Military wire part numbers are built to be read. In M22759/16-20-9 the M22759 is the
specification, /16 is the slash sheet that fixes construction and ratings, 20 is the
size in AWG and 9 is the color, white. A second color digit adds a stripe. The old M prefix is still
printed on wire and used on drawings, although the specification itself is now an SAE document.
When there is no list
Not every specification has one. MIL-DTL-16878 hookup wire, for instance, carries no qualification requirement: any maker may declare its product conforming, and the buyer relies on test reports and its own approval of the source. That is not a lower standard so much as a different allocation of the work. Where a list exists the government did the vetting; where it does not, you do, using the method in Qualifying a wire manufacturer.
The companies NEMA lists as working in this field are on the high-performance wire sheet. Treat it as a list of names to take to the database, never as a substitute for it.