The short answer is that the current 24087 (FS595B) is not the same COLOR that the trucks were originally painted in. Not a problem unless you want to be finicky... FS595B was adopted on December 15, 1989, so it was not in effect when these trucks were in service...
The COLOR that they were painted (and the nomenclature used to describe the COLOR) has changed a couple of times during the production of the M37 series, and also during the operational life span of the vehicles. Deciding on what you want to paint your truck with should include if you want it to look like it did from the factory, or from some period of it's life...
To quote DDoyle (from some information that he has on the
www.steelsoldiers.com website) as he has done an incredible amount of research into this:
"There is a tremendous amount of confusion among MV collectors about OD - and particularly, 24087. I've done a few years research into this (and, no doubt, will do a few mores) and will try to provide some clarification.
First of all - BEWARE -- don't confuse colors with numbers. Today's Federal Standard is FS595B (it was adopted in 1989) - and there is a color 24087 listed in it. However, this is NOT the same COLOR as the Vietnam era 24087.
We will start with an OD history lesson, beginning well before our beloved FS-595A 24087.
Before FS595 there was TT-C-595, which had numbers wtih 4 digits rather than five.
The TT-C-595 standard used a two-digit prefix to distinguish both sheen, and color. The prefix 24 indicates this color was a semi-gloss green (interesting, because the 24084 to be discussed later is considered a beige under the FS595 system). The last two digits in the TT-C-595 system are used to denote relative darkness of the color - the larger the last two digits, the darker the color.
FS595 was adopted in 1956 and was the standard until 1968. Addendum 2 to FS-595 was made on May 9, 1960. With it colors 14087, 24087, and 34087 (Olive Drab) were replaced with X-14087, X-24087 and X-34087. As of Nov 29, 1961, the mix for X-24087 was as follows:
Lacquer: Acme 1744, Ditzler DAL-42955, DuPont (246)-29149, Rinshed-Mason U3742
or
Enamel: Acme 22-1744, Ditzler DQE-42955, DuPont(93)-29149-H, Rinshed-Mason 2U3742
The applicable Federal Standard during much of the Vietnam war was FS595A (adopted in 1968).
Chg 3 to FS-595A was made on April 28, 1972 Colors 14050-X, 14087-X, 24087-X and 34087-X were introduced permanently to the standard and thus dropped the suffix "X".
Chg 6 to FS-595A February 1, 1980 issued a self-adhesive chip for 34087 to cover the "incorrect" shade included in the 1979 reprint of documentation.
Chg 7 was made to FS-595A, on January 1, 1984 was made. Colors 14087 and 24087 renamed to 14084 and 24084, 34087 renamed to 34088.
Chg 8 to FS595A was made August 30, 1984. In this revision Chg 6 was cancelled to prevent continued use of color designation 34087.
On December 15, 1989 the Federal Standard was revised, and became FS595B.
As can be seen here, the COLOR of FS595A 24087 pre 1984 is the same as FS595B 24084; FS595B 24087 is not the same COLOR as FS595A 24087.
Its no wonder so many folks complain that the paint they bought doesn't match their NOS parts.
HTH,
David Doyle"
I don't think that David will mind my reposting the information here for you folks who don't peruse the other site...if so, he will let me know...
Meanwhile, the above information may be found at:
http://www.steelsoldiers.com/index.php? ... ic&t=15549