Name: 100 mm FRAG-HE 53-OF-412, 100 mm HE
Availability: InStock

Item Type

Item State

Type

Action

Guidance

Caliber

Weights complete rounds, full charge

Weights complete rounds, reduced charge

HE 53-OF-412Zh, 15.91 kg; FRAG-HE 53-OF-412, 15.61 kg; FRAG 53-O-415, 15.44

projectiles explosive

projectiles propellant

projectiles cartridge case

Lengths complete round

HE 53-F-412Zh, 486.05 mm; FRAG-HE 53-OF-412, 489 mm; FRAG 53-O-415, 511.3

Diameter of cartridge case over rim

Muzzle velocity

Max range

Chamber pressure

Northern Africa

Egypt

Southern Asia

Iran

Pakistan

Western Asia

Iraq

Eastern Europe

Bulgaria

Czech Republic

Romania

Slovakia

Northern Europe

Finland

<h2>Armament</h2><p>100 mm D-10 series tank guns (including NORINCO Type 59 ); 100 mm field gun BS-3; 100 mm KS-19 anti-aircraft gun; NORINCO 100 mm field gun and 100 mm anti-tank gun Type 73; 100 mm Field Gun M53 ; 100 mm towed anti-tank gun M1977 ; 100 mm towed anti-tank gun M1977 ( Romania ); 100 mm Coast Gun ( Yugoslavia ).</p><h2>Development</h2><p>These three general purpose explosive filled projectiles are described in the same entry due mainly to the fact that there is little difference between them, despite the differentiation in their designations. One version of the FRAG-HE OF-412 is stated to produce more than 1.9 times the fragmentation of a conventional HE projectile. They mainly vary in the model or type of fuze employed, some outline and dimensional details and the weight of their explosive fillings. These rounds have been produced in Bosnia-Herzegovina , Bulgaria , China , Czech Republic , Egypt , Pakistan , Romania , Slovakia and Yugoslavia . India may also produce one or other of them but no information is available. One further 100 mm FRAG-HE projectile, the 3OF32, is covered in the following entry.</p><h2>Description</h2><p>All three of these 100 mm HE type rounds are fixed. The projectiles are rigidly secured to their brass cartridge cases by a shallow crimping ring located between their twin copper drive bands which are set some 22 mm apart. The HE 53-OF-412Zh has a less pronounced boat tail base than the other two rounds. All three rounds are steel and have wall thicknesses of approximately 18 to 20 mm at the bourrelet, although the grade of steel does vary. The explosive fillings also differ. The HE 53-OF-412Zh has 2.16 kg of TNT; the FRAG-HE 53-OF-412 has 1.46 kg of TNT and the 53-O-415 has 1.58 kg of TNT/Aluminium. The HE 53-OF-412Zh has a point detonating RGM fuze, the FRAG-HE 53-OF-412 has a point detonating V-429 fuze, while the FRAG 53-O-415 has a mechanical time VM-30 or VM-30L fuze to produce airbursts. It is intended primarily for the KS-19 anti-aircraft gun and always uses a brass case, as do all rounds for the KS-19 . All fuzes are threaded directly into a cavity in the projectile nose. The MK-75 brass cartridge cases (lacquered steel may also be used) may contain one of two possible propellant loads. These vary from type to type but, as an example, the FRAG-HE 53-OF-412 cartridge case may contain a full 5.6 to 5.75 kg or a reduced 2.27 to 2,4 kg charge of NGH or NDT-3 18/1 propellant in bundled stick form; some reduced charges use 9/7 + 12/1 TR propellant. KVU or KV-13U percussion primers are threaded into the bases. From the two different propellant loads it follows that the muzzle velocity of all three rounds will be 900 or 600 m/s. These velocities correspond to maximum ranges of 20,650 or 11,000 m. A training round intended specially for training tank crews is the 100 mm UOFT-412 training round with a OFT-412 HE-T projectile. The projectile is fired at a muzzle velocity of 900 m/s and emits a No 1 tracer for up to 5 seconds from a location in the base so that the trajectory can be followed for training assessment and marking purposes. As the projectile passes through a soft target the nose-mounted MG-UchM, VS-5 or VUBS-1M super-quick point detonating fuze, functions to detonate the projectile's TNT bursting charge less than 5 m behind the target. Should the projectile fail to hit a target it will self-destruct after about 5 to 7 seconds at a maximum range of 16,800 m. The complete UOFT-412 round weighs 30.3 kg and has a lacquered steel or brass cartridge case containing 5.75 kg of NDT-3 18/1 propellant. The 100 mm UOFT-412 training round is marketed by Kintex of Bulgaria . ROMARM of Romania also produces an HE-T training round with a self-destruct element functioning to detonate a 1.02 kg explosive charge 3.5 to 4.5 seconds after firing. This equates to a range between 2,500 and 3,000 m. A 3.67 kg propelling charge produces a muzzle velocity of 970 m/s. The projectile weighs 9.2 kg and the complete round is 928 mm long overall. Another training round equivalent produced for 100 mm anti-armour guns is produced by Zaklady Tworzyw Sztucznych `PRONIT' in Poland . This round (the designation is not known) resembles a normal HE type 100 mm round and can be handled and loaded in the same manner. The projectile has a plastic casing filled with either water or an anti-freeze mixture for when low temperatures are encountered. As the projectile leaves the muzzle after firing the plastic casing disintegrates, scattering fragments and the liquid contents out to a maximum range of 120 m. In the process, the gun produces sound and flash and the gun recoil and other mechanisms will operate. The round is 1.1 m long overall.</p><h2>Authorised fuzes</h2><p>HE 53-OF-412Zh - PD RGM FRAG-HE 53-OF-412 - PD V-429 FRAG 53-O-415 - MT VM-30 or VM-30L Equivalent rounds BOSNIA-HERZEGOVINA</p><h2>Manufacturer</h2><p>Ministry of Defense, Department of Defense Industry</p><p>Type: 100 mm HE</p><p>Description: Understood to use OF-412 projectile</p><p>BULGARIA</p><h2>Manufacturer</h2><p>Duna-Rit</p><p>Type: 100 mm HE</p><p>Description: Understood to use OF-412 projectile</p><h2>Manufacturer</h2><p>Kintex</p><p>Type: HE UOF-412 or UOF-412U</p><p>Description: Available in both Full (UOF-412) or Reduced (UOF-412U) Charge form. Brass or</p><p>lacquered steel cartridge cases contain 5.75 or 2.4 kg of propellant. The projectile is fitted with a</p><p>V-429E PD fuze</p><h2>Manufacturer</h2><p>Kintex</p><p>Type: UOFT-412</p><p>Description: Training round - see text</p><p>CZECH REPUBLIC</p><h2>Manufacturer</h2><p>ZVS Dubnica</p><p>Type: HE JOF</p><p>Description: Complete round weighs 26.7 kg and the steel projectile contains 1.46 kg of TNT. Nose</p><p>fuze is PD V-429 and the cartridge case contains Dgtp or Ngtp propellant in bundled stick form. The</p><p>percussion primer threaded into the base is a ZS-1a or KV-4. Maximum range is 15,000 m and</p><p>operating temperature range -40 to +40ºC</p><h2>Manufacturer</h2><p>Caliber Limited</p><p>Type: 100 mm round with OF-412 HE</p><p>Description: Propelling charge is 5.75 kg of NDT-3 18/1 and maximum range given as 16,800 m.</p><p>Otherwise standard specifications</p><p>EGYPT</p><h2>Manufacturer</h2><p>Heliopolis Company for Chemical Industries</p><p>Type: 100 mm FRAG-HE and HE</p><p>Description: Specifications as text</p><p>FINLAND</p><h2>Manufacturer</h2><p>Sako Limited</p><p>Type: HE</p><p>Description: Believed to be 53-OF-412Zh</p><p>IRAN</p><h2>Manufacturer</h2><p>Defence Industries Organisation, Ammunition Division</p><p>Type: 100 mm HE</p><p>Description: Iran has been producing ammunition for the 100 mm guns used by the Iranian armed</p><p>forces. The exact types of round are not known although some form of HE-based round would seem to</p><p>be very likely. No further information is yet available</p><p>IRAQ</p><h2>Manufacturer</h2><p>State factories</p><p>Type: 100 mm HE</p><p>Description: In 1990 the Iraqis were producing 100 mm HE rounds for their armed forces. The exact</p><p>type of round is not known and it is probably no longer in production</p><p>PAKISTAN</p><h2>Manufacturer</h2><p>Pakistan Ordnance Factories (POF)</p><p>Type: 100 mm HE/TK P1A1</p><p>Description: Appears to be a local variation of 53-OF-412 round as full round weight given as 30.5 kg</p><p>and round length as 1.09 m. Fuze is PD Liu-5 while the percussion primer is a Type D-5. Projectile</p><p>filling is TNT</p><p>ROMANIA</p><h2>Manufacturer</h2><p>SN ROMARM SA</p><p>Type: 100 mm HE</p><p>Description: Produced with full or reduced propellant charges for Model 77 field gun as well as D-10</p><p>series tank guns. Training HE-T also produced - see text</p><p>SLOVAKIA</p><h2>Manufacturer</h2><p>VIHORLAT As Snina</p><p>Type: HE JOF</p><p>Description: Complete round weighs 26.7 kg and projectile contains 1.46 kg of TNT. PD fuze is</p><p>V-429. The brass or lacquered steel cartridge case contains 5.6 kg of Dgpt or Ngtp propellant</p><p>YUGOSLAVIA , FEDERAL REPUBLIC</p><h2>Manufacturer</h2><p>Yugoimport SDPR</p><p>Type: HE M63P1</p><p>Description: Produced with full or reduced propellant charges. Equivalent to FRAG-HE 53-OF-412.</p><p>Also produced is a Prac HE M63P1 containing a 42.5 g Tetryl marker charge in the nose and an</p><p>otherwise inert filling. A 100 mm Blank M71 , containing 400 g of single-base propellant in powder form in a brass stub case 282 mm long, was also produced. Both types are probably no longer in production</p>

The 100 mm FRAG-HE 53-OF-412, 100 mm HE is all three of these 100 mm HE type rounds are fixed. The projectiles are rigidly secured to their brass cartridge cases by a shallow crimping ring located between their twin copper drive bands which are set some 22 mm apart. The HE 53-OF-412Zh has a less pronounced boat tail base than the other two rounds. All three rounds are steel and have wall thicknesses of approximately 18 to 20 mm at the bourrelet, although the grade of steel does vary. The explosive fillings also differ. The HE 53-OF-412Zh has 2.16 kg of TNT; the FRAG-HE 53-OF-412 has 1.46 kg of TNT and the 53-O-415 has 1.58 kg of TNT/Aluminium. The HE 53-OF-412Zh has a point detonating RGM fuze, the FRAG-HE 53-OF-412 has a point detonating V-429 fuze, while the FRAG 53-O-415 has a mechanical time VM-30 or VM-30L fuze to produce airbursts. It is intended primarily for the KS-19 anti-aircraft gun and always uses a brass case, as do all rounds for the KS-19. All fuzes are threaded directly into a cavity in the projectile nose.

The projectile is fired at a muzzle velocity of 900 m/s and emits a No 1 tracer for up to 5 seconds from a location in the base so that the trajectory can be followed for training assessment and marking purposes. As the projectile passes through a soft target the nose-mounted MG-UchM, VS-5 or VUBS-1M super-quick point detonating fuze, functions to detonate the projectile's TNT bursting charge less than 5 m behind the target. Should the projectile fail to hit a target it will self-destruct after about 5 to 7 seconds at a maximum range of 16,800 m. The complete UOFT-412 round weighs 30.3 kg and has a lacquered steel or brass cartridge case containing 5.75 kg of NDT-3 18/1 propellant. The 100 mm UOFT-412 training round is marketed by Kintex of Bulgaria. ROMARM of Romania also produces an HE-T training round with a self-destruct element functioning to detonate a 1.02 kg explosive charge 3.5 to 4.5 seconds after firing. This equates to a range between 2,500 and 3,000 m.

Kintex

100 mm FRAG-HE 53-OF-412, 100 mm HE

100 mm FRAG-HE 53-OF-412, 100 mm HE

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