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2020 (1)

OST

1981

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OST 41-01-172-81

Centre holes. Dimensions (restriction as per GOST 14034-74).

OST 41-01-173-81

Bending and bevel radius. Dimensions (restriction as per GOST 10948-64).

OST 41-01-174-81

Input Chamfers for details under pressing.

OST 41-01-175-81

Oil grooves. Dimensions.

OST 41-01-176-81

Grooves for exit of grinding wheel. Shape and dimensions (limitation under GOST 8820-69).

OST 41-01-177-81

Grooves for exit of circular shaper-type cutter. Dimensions (limitation under GOST 14775-69).

OST 41-01-178-81

Depth of screwing. Bolt, screw and stud end exit.

OST 41-01-179-81

Square and elongated through holes for fasteners. Shape and dimensions (restriction as per GOST 16030-70).

OST 41-01-180-81

Spaces for a wrenches. Dimensions (restriction as per GOST 13682-80).

OST 41-01-181-81

Jaws (hole), key end and “turnkey” dimension. (limitation under GOST 6424-73).

OST 41-01-182-81

Support surfaces for fasteners. Dimensions (restriction of GOST 12876-67 и ST SEV 213-75).

OST 41-01-183-81

Screw grommmeting. Dimensions.

OST 41-01-184-81

Cones. Normal taper (limitation under GOST 8593-57).

OST 41-01-185-81

Straight and mesh corrugations. The shape and main dimensions (restriction as per GOST 21474-75).

OST 41-01-186-81

Reinforcement ribs for parts from sheet material.

OST 41-01-187-81

Pipe bending radius and sheet parts bent.

OST 41-01-188-81

Fold handling of angle steel.

OST 41-01-189-81

Sections of parts attached to rolled sections in welded structures.

OST 41-01-190-81

Shape of stiffeners in rolling profiles.

OST 41-01-191-81

Location of rivet and bolt holes in rolled sections.

OST 41-01-192-81

Driving wedge-like belts. Cross-section of pulley grooves (restriction as per GOST 1284-80).

OST 41-01-193-81

Felt sealing rings and grooves to them. Dimensions.

OST 41-01-194-81

Holes for cutting taper pipe thread. Diameters (restriction as per GOST 21350-75).

OST 41-01-195-81

Holes for cutting pipe straight thread. Diameters (restriction as per GOST 21348-75).

OST 41-01-196-81

Taper pipe thread cores. Diameters (restrictions imposed by GOST 21349-75).

OST 41-01-197-81

Pipe cylinder thread cores. Diameters (restrictions imposed by GOST 21347-75).

OST 41-01-198-81

Pipe straight thread. Cross-section, main dimensions and allowances (restriction as per GOST 6357-73).

OST 41-01-199-81

Taper pipe thread. Cross-section, main dimensions and allowances (restriction as per GOST 6211-69).

OST 41-01-200-81

Through holes for fasteners. Supporting surfaces for rivet heads. Dimensions. Selection of rivet length depending in thickness of riveted parts.

OST 41-01-201-81

Blinds. Design and dimensions.

OST 41-01-202-81

Nipple for rubber sleeve. Design and dimensions.

OST 41-01-203-81

Thread yield. Run out, undercut, grooving and chamfering (limitation under GOST 10549-63).

OST 41-01-204-81

Dependability of exploratory drilling equipment. Accelerated monitoring life test of drilling rigs for core drilling.

OST 41-01-209-81

Non-destructive testing. Equipment and tools for exploration drilling. Magnetic particle inspection method.

OST 41-02-206-81

Sections of trial pits. Forms and dimensions.

OST 41-02-207-81

Labour safety standard system. Underground mining and exploration work dedusting. General requirements.

OST 41-02-208-81

Occupational safety standards system. Aeration of underground mining and exploring openings. General requirements.

OST 41-06-164-81

Gamma-ray logging instrument. Verification methods and measures.

OST 41-06-165-81

Measuring devices for electromagnetic logging. Methods and means of checking.

OST 41-06-170-81

Equipment for well diameter and profile logging in wells. Methods and means of checking.

OST 41-06-171-81

Devices for lateral logging exploration and micrologging. Methods and means of checking.

OST 41-07-91-81

Jewelry inserts from natural semi-precious colored stones. General specifications

OST 41-08-205-81

Quality control of analytical work. The order and content of the work on the techniques certification of quantitative analysis of mineral raw materials.

OST 4-201.005-81

Exciters for transmitters of point-to-point radio communication. Testing and measurement techniques.

OST 4-206.007-81

Electrical Mechanical filter of tonal range of frequencies. Types, main parameters. Design and dimensions.

OST 4-208.018-81

Data link systems. Data transmission and maintenance equipment junctions. Catenation and interface specifications.

OST 4-214.002-81

Equipment of long-distance communication. Filters electromechanical small-sized with magnetostrictive converters. Types. Design and dimensions.

OST 42-21-11-81

Labour safety standard system. Offices and departments of radiotherapy. Safety requirements.

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