Summary for finish 513c type i Discussion
Finish 513C type I per MIL-F-14072 is described in the thread as a two-step aluminum treatment: first pretreat the substrate per DOD-P-15328, then apply a primer such as TT-P-1757 or MIL-P-85582, Type II. The answer notes that newer reformulated coatings often use the "PRF" designation instead of "P" (for example, MIL-PRF-23377), with performance equal to or better than the older version, though customer approval may still be needed before substituting. It also points readers to the DoD ASSIST site for current specifications. The discussion says MIL-F-14072 remains active, while DOD-P-15328 was canceled, though DOD-P-15328D (Metric) is active. In short, the finish is not simply obsolete; the spec can still be traced through current or successor documents.
Q. Our company is currently being asked to quote and build a hub handle spec’d for military usage on an older model antenna which, in the drawing a FINISH MIL SPEC is called out. We have yet to find any useful information regarding this particular spec and seek assistance.
The spec is as follows:
FINISH P513C TYPE 1 PER MIL-F-14072
Our drawing for this part is in excess of 20 years old and we have been told by our finishing partners that this MIL SPEC is obsolete as well as far as their information goes.
Any assistance will be appreciated.
Thank you,
Louis Barnett
– Kilgore, Texas
2003
A. Finish 513C TYPE I per MIL-F-14072 is 2 steps: 1) Pretreatment of the aluminum substrate per
DOD-P-15328, 2) Application of Primer TT-P-1757
[⇦ this spec on DLA]
*. DOD-P-15328 describes a wash primer containing phosphoric acid and organic resin, packaged separately and thoroughly mixed
* a one-component, alkyl primer. Alternate primers where lead or chromate pigments are prohibited are MIL-P-53022, MIL-DTL-53030
[⇦ this spec on DLA] or MIL-P-85582 [MIL-PRF-85582
[from DLA]
]. Also, primer MIL-P-53084 (lead and chromate free) which is applied by electrocoating may be used (per paragraph 3.9.5) For low IR reflectance, use MIL-P-23377 [MIL-PRF-23377
[⇦ this spec on DLA]], Type II.
Paints that have been reformulated to reduce organic solvent content use PRF instead of P in the specification, e.g., MIL-PRF-23377. Performance requirements equal or exceed those of the P version, but you may still need customer approval to substitute.
You can obtain specifications from the DoD’s ASSIST site https://assist2.daps.dla.mil/quicksearch/ ⇩
Note: MIL-F-14072 has active status, DOD-P-15328 was canceled but DOD-P-15328D (Metric) is active, as is TT-P-1757
[⇦ this spec on DLA]
B and all of the paints although some in newer PRF versions. Obtain the QPL (qualified products list) for a paint by entering just the number in the specification into the document ID Number space on the Search form. E.g., enter 53022 to obtain QPL-53022 for paint MIL-P-53022.
Ken Vlach [deceased]
– Goleta, California
Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2003
Ed. note Feb. 2025: That MIL specs site is currently https://quicksearch.dla.mil/qsSearch.aspx
A. Did a quick search. letter7630 references a website: https://assist.daps.mil/ Click on quick search, enter 14072 in the document number, and up pops revision D. (Didn’t actually view the document – 56 pages, even in .pdf format, will take some time to download…but its there.)
James Davila
– Dayton, Ohio
2003