Flowserve G4 Marathon Sleeveline Plug Valves - Manual (Page 6)

TABLE 2
NUTS
HN - Finished Heavy Hex Nut
XN - Finished Hex Nut
HXN - Regular Heavy Hex Nut
Dimension per ANSI B18.2.2
Alloy identification stamp is required on each piece.
Certification required.
8 - 304 Stainless Steel per ASTM A194, Grade 8
8M - 316 Stainless Steel per ASTM A194, Grade 8M
2H - ASTM A194, Grade 2H
2HM - ASTM A194, Grade 2HM
7M -
ASTM A194, Grade 7M, 100% hardness tested
7MT - ASTM A194, Grade 7M, 100% hardness tested, Teflon ® coated, Dupont SP11C, Type B - Color blue or green
M - Monel (UNS N04400), ASTM B164, Class A or B, QQN-281, Class B
HB - Hastelloy B (UNS 10665), ASTM B335
HC - Hastelloy C276 (UNS N10276), ASTM B574
I625 - Inconel 625 (UNS N06625), ASTM B446
I718 - Incoloy 718, AMS 5596B
I825 Incoloy 825 (UNS N08825), ASTM B425
L7 - Chromium-Molybdenum Alloy Steel per ASTM A194, Grade 7
L7M - Chromium-Molybdenum Alloy Steel per ASTM A194, Grade 7M, 235 BHN Max, ASTM A320, Section 9
MKH - Monel K-500, Cold drawn and aged hardened, QQN-286 and ASTM F467
8F -
303 Stainless Steel per ASTM A194, Grade 8F
2HYC - ASTM A194, Grade 2H, Yellow Zinc Dichromate Plated
SECTION IV
PRESSURE CONTAINING FASTENERS
6
Flow Control Division
Section 1.0