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AISI 316L MSS SP-114 150# Stainless Steel Threaded Locknuts
Product Information
| Product Name | AISI 316L MSS SP-114 150# Stainless Steel Threaded Locknuts |
| Thread Types | ASME B1.20.1 |
| Dimensions | ISO 49-1994(E) |
| Size Range | 1/8” to 4” |
| Pressure Class | Class 150 |
| Materials | AISI 316/L |
Standard & Materials: AISI 316L
The AISI 316 and AISI 316L describes stainless, austenitic chromium-nickel-molybdenum steels which have good resistance in non-oxidizing acids and chlorine-containing media. Due to the chemical composition, the material 316 and the material 316L are inherently corrosion resistant metal alloys. .
AISI 316/L Approximate Average Chemical Composition (%)
| Grade | C, max | Si, max | Mn, max | P, max | S, max | Ni | Cr | Mo |
| AISI 316 | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
| AISI 316L | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
AISI 316/L Mechanical Properties
| Mechanical Properties | 316 | 316L |
| Tensile Strength (MPa), ≥ | 515 | 485 |
| 0.2%Yield Tensile Strength (MPa) , ≥ | 205 | 170 |
| Elongation in 50mm (2 in.) (%), ≥ | 40 | 40 |
| Brinell Hardness (HBW) , ≤ | 217 | 217 |
| Rockwell Hardness (HRBW), ≤ | 95 | 95 |
MSS SP-114 Dimensions of Class 150 Locknuts (inches)
| NPS | Length (min.) | Width Across Flats (min.) | Dia. of Packing Recess(a) | Depth of Packing Recess(a) |
| A | C | F | K | |
| ⅛ | 3/16 | 11/16 | 0.50 | 0.04 |
| ¼ | 1/4 | 27/32 | 0.66 | 0.06 |
| ⅜ | 9/32 | 1 | 0.77 | 0.06 |
| ½ | 5/16 | 1 3/16 | 0.97 | 0.06 |
| ¾ | 11/32 | 1 7/16 | 1.23 | 0.06 |
| 1 | 3/8 | 1 3/4 | 1.50 | 0.06 |
| 1¼ | 7/16 | 2 3/32 | 1.86 | 0.06 |
| 1½ | 15/32 | 2 11/32 | 2.12 | 0.06 |
| 2 | 17/32 | 2 7/8 | 2.63 | 0.09 |
| 2½ | 19/32 | 3 1/2 | 3.18 | 0.09 |
| 3 | 11/16 | 4 9/32 | 3.84 | 0.09 |
| 4 | 13/16 | 5 3/8 | 5.00 | 0.13 |
General Note: Threads shall be NPSL straight Pipe threads in accordance with
ASME B1.20.1
Note: (a) For casting, the packing recess may be a cast finish or a
tooled finish.
