5.8×21mm

{{Short description|Chinese armor-piercing pistol cartridge}}

{{Infobox firearm cartridge

| name = 5.8×21mm DAP92

| image =| image_size = 250px

| caption = 5.8×21mm rounds

| origin = China

| type = Handgun, submachine gun

| service =

| used_by = China

| wars =

| designer =

| design_date = 1994

| manufacturer = Norinco

| production_date =

| number =

| variants =

| is_SI_specs = yes

| parent =

| case_type = Rimless, bottleneck{{cite web|url=http://www.municion.org/5_8/5_8x21.htm|title=5.8x21 / MUNICION.ORG|access-date=March 23, 2012|archive-url=https://web.archive.org/web/20131017144454/http://www.municion.org/5_8/5_8x21.htm|archive-date=October 17, 2013|url-status=dead}}

| bullet = 6.00 mm (0.236 in) [http://www.handgunsmag.com/2010/09/24/ammunition_hg_militarytoday_200811/ Handgunsmag.com]. Retrieved 3 April 2013.

| neck = 6.57

| shoulder = 7.77

| base = 7.95

| rim_dia = 7.97

| rim_thick = 1.13

| case_length = 21.00

| length = 32.50

| case_capacity =

| rifling =

| primer =

| max_pressure =

| max_cup =

| filling =

| filling_weight =

| detonation =

| yield =

| is_SI_ballistics = yes

| bwunit =

| bw1 = 46

| btype1 = armor piercing*

| vel1 = 479

| en1 = 335

| bw2 = 46

| btype2 = armor piercing**

| vel2 = 518

| en2 = 420

| bw3 =

| btype3 =

| vel3 =

| en3 =

| bw4 =

| btype4 =

| vel4 =

| en4 =

| bw5 =

| btype5 =

| vel5 =

| en5 =

| test_barrel_length = Pistol* and submachine gun**

| balsrc =

}}

The 5.8×21mm DAP92 ({{lang-zh|p=92 shì 5.8 háo mǐ pǔ tōng dàn|s=|c=DAP92式5.8毫米普通弹}}, {{literal translation|Type 92 5.8mm standard cartridge}}) is a Chinese armor-piercing cartridge for handguns and submachine guns.