use warnings;
use strict;

my %data = (
    5030    => '5030|RED DOOR|10-14',
    1049    => '1049|RED DOOR|10-14',
    4990    => '4990|RED DOOR|10-14',
    959     => '959|RED DOOR|10-14',
    15047   => '15047|FLOWER|13+',
    5565    => '5565|RED DOOR|10-14',
    4449    => '4449|RED DOOR|10-14',
    1065    => '1065|RED DOOR|10-14',
    2992    => '2992|RED DOOR|10-14',
    4956    => '4956|RED DOOR|10-14',
    17665   => '17665|FLOWER|13+',
    6217    => '6217|RED DOOR|10-14',
    1224    => '1224|RED DOOR|10-14',
    424     => '424|RED DOOR|10-14',
    368     => '368|RED DOOR|10-14',
    451     => '451|RED DOOR|10-14',
    7752    => '7752|RED DOOR|10-14',
    4070    => '4070|RED DOOR|10-14',
    1312    => '1312|RED DOOR|10-14',
    17668   => '17668|FLOWER|13+',
    4224    => '4224|RED DOOR|10-14',
    3588    => '3588|RED DOOR|10-14',
    11076   => '11076|RED DOOR|10-14',
    2986    => '2986|RED DOOR|10-14',
    2402    => '2402|RED DOOR|10-14',
    10834   => '10834|RED DOOR|10-14',
    849     => '849|RED DOOR|10-14',
    2954    => '2954|RED DOOR|10-14',
    11      => '11|RED DOOR|10-14',
    4093    => '4093|RED DOOR|10-14',
    492     => '492|RED DOOR|10-14',
    1861    => '1861|RED DOOR|10-14',
    4384    => '4384|RED DOOR|10-14',
    15037   => '15037|FLOWER|11+',
    13044   => '13044|FLOWER|13+',
    899     => '899|RED DOOR|10-14',
    292     => '292|RED DOOR|10-14',
    10421   => '10421|RED DOOR|10-14',
    4120    => '4120|RED DOOR|10-14',
    5557    => '5557|RED DOOR|10-14',
    3859    => '3859|RED DOOR|10-14',
    930     => '930|RED DOOR|10-14',
    649     => '649|RED DOOR|10-14',
    7511    => '7511|RED DOOR|10-14',
    648     => '648|RED DOOR|10-14',
    73      => '73|RED DOOR|10-14',
    12537   => '12537|RED DOOR|10-14',
    2485    => '2485|RED DOOR|10-14',
);

my %hoa;
for my $k (keys %data) {
    my ($k2) = $data{$k} =~ /.*?\|(.*)/;
    push @{ $hoa{$k2} }, $k;
}

use Data::Dumper;
$Data::Dumper::Sortkeys=1;
print Dumper(\%hoa);
[download]

If original hash order is important, use Tie::IxHash