Flare nuts

Hot forged brass. For metric and fractional tube, SAE Flare 45°

Primary material: Forged brass EN 12165

Standard and regulation reference: PED 97/23/CE, RoHS 2002/95/CE, REACH Reg. 1907/2006, EN378-2:2008, SAE-FIT, SAE 45° J513-92

Application: Suitable for air-conditioners and refrigerating systems that work with refrigerant proper to the group II Article 9, 2.2 of the PED Directive 97/23/CE, referring to the Directive 67/548/CEE. ( tested with the following: R12, R22, R134a, R404A, R407C, R410A, R502, R507, CO2 R744, R32 ). Not suitable for Ammonia R717

Working condition:
Max working pressure 45 bar (650 psi)
Temperature range -40°C to +150°C (-40°F to 300°F)

Risk category according to Pressure Equipment Directive PED 97/23/CE: Article 3 Paragraph 3

NS4 cap nut

Drawing Part number internal thread
(female)
ø Bore L
(mm)
Hex
(mm)
Tightening torque
(Nm)
      mm inch      
NS4 NS4-4 SAE 1/4″
7/16"-20 UNF
6mm 1/4" 15 17 11 ÷ 14
NS4-5 SAE 5/16"
1/2"-20 UNF
8mm 5/16" 15 17 12 ÷ 17
NRS4-64 SAE 3/8"
5/8"-18 UNF
6mm 1/4" 18,5 22 20 ÷ 25
NS4-65 8mm 5/16" 18,5 22 20 ÷ 25
NS4-6   3/8" 18,5 22 20 ÷ 25
NS4-6M10 10mm   18,5 22 20 ÷ 25
NRS4-86 SAE 1/2"
3/4"-16 UNF
  3/8" 19,5 25 34 ÷ 47
NS4-8M10 10mm   19,5 25 34 ÷ 47
NS4-8M12 12mm   19,5 25 34 ÷ 47
NS4-8   1/2" 19,5 25 34 ÷ 47
NS4-8M14 14mm   19,5 25 34 ÷ 47
NS4-10M12 SAE 5/8"
7/8"-14 UNF
12mm   21 28 54 ÷ 75
NRS4-108   1/2" 21 28 54 ÷ 75
NS4-10M14 14mm   21 28 54 ÷ 75
NS4-10 16mm 5/8" 21 28 54 ÷ 75
NS4-12M14 SAE 3/4"
1.1/16"-14 UNS
14mm   30 33 68 ÷ 71
NRS4-1210 16mm 5/8" 30 33 68 ÷ 71
NS4-12M18 18mm   30 33 68 ÷ 71
NS4-12 19mm 3/4" 30 33 68 ÷ 71
NS4-14 SAE 7/8"
1.1/4"-12 UNF
22mm 7/8" 36,5 41 90 ÷ 120
NRS4-1614 SAE 1"
1.3/8"-12 UNF
22mm 7/8" 36,5 41 120 ÷ 150
NS4-16   1" 36,5 41 120 ÷ 150