The following steel grades are used for manufacture of mounting parts, namely:
• heatproof corrosion-resistant steel 18Х12VMBFR GOST 5632-72;
• heat resisting steel 25Х2М1F TU 14-1-552-73;
• high strength steel 35ХGSA GOST 4543-71.

Technical characteristics

See Table.

Scope of delivery

See Table.

Operation details: it operates at GAZPROM facilities since 2005.
Ordering information: a set of mounting parts А7507-L48.

No.	Drawing labelling	Name	Quantity	Characteristics, part dimensions	Notes
1	А7507-L48.01	Bolt	58	12-faced head, s=19, thread 3/4”–10 UNC, 104 х Ø28,5 mm	Vertical connector inside combustion chamber (CCh) after switching to recuperative cycle
2	А7507-L48.02	Screw	29	6-faced wrenchreceiving opening. s=19, thread 1”-8 UNC, 140 х Ø38 mm	Bolt No. 0014P39044 Turbine's housing 0705
3	А7507-L48.03	Bolt	18	12-faced head, s=25, thread 1”-8 UNC, 120 х Ø38 mm	Second stage diaphragm 0705
4	А7507-L48.04	Screw	12	6-faced wrenchreceiving opening s=16, thread 3/4”-10 UNC, 134 х Ø27 mm	Bolt No. 170 35072 Bearing No. 2
5	А7507-L48.05	Screw	6	6-faced wrenchreceiving opening s=17, thread 3/4”-10 UNC, 98 х Ø30 mm	Bolt No. 296А786R216 Turbine nozzle
6	А7507-L48.06	Screw	4	6-faced wrenchreceiving opening s=19, thread 1”-8 UNC, 164 х Ø38 mm	Bolt No. 170R 39088 Turbine nozzle
7	А7507-L48.07	Screw	4	6-faced wrenchreceiving opening s=19, thread 1”-8 UNC, 190,5 х Ø38 mm	Screw 296А786R218 Low pressure turbine's housing
8	А7507-L48.08	Bolt	30	12-faced head, s=25, thread 1”-8 UNC, 131 х Ø38 mm	Horizontal connector inside CCh after switching to recuperative cycle
9	А7507-L48.09	Screw	38	6-faced wrenchreceiving opening s=19, thread 1”-8 UNC, 99 х Ø38 mm	Screw No. 170 39040 Axial compensator's housing 0805
10	А7507-L48.10	Stud	8	Thread М18-6g length 30 mm, 145 х Ø20,62 mm	Stud 01.0803.004.00.00 Exhaust manifold
11	А7507-L48.10	Stud	8	Thread 3/4”-10 UNC length 30 mm, 145 х Ø20,62 mm	Stud 155А1591Р023 Exhaust manifold
12	А7507-L48.11	Stud	4	Thread 1”-8 UNC length 48 mm, 172 х Ø28,7 mm	Stud PNA housing
13	А7507-L48.12	Stud	4	Thread М24-6g length 48 mm, 172 х Ø28,7 mm	Stud 01.0805.021.00.00 PNA housing
14	А7507-L48.13	Bolt	24	6-faced head, s=19, thread 1/2”-13 UNC, 44 х Ø21,4 mm	Bolt RD51-49-82 Mount of retaining mechanism of redirect pipe branch in CCh
15	А7507-L48.14	Nut	16	Thread 3/4”-10 UNC, 12-faced wrenchreceiving opening s=19, 30 х Ø31 mm	Nut 267.А 00035 01.0802.005.00.00 Axial compressor's housing
16	А7507-L48.15	Nut	8	Thread М24-6H, s=36, 27 х Ø41,6 mm	Self-locking nut 01.1509.015.00.00 Exhaust tunnel