Model: 123721-2

Boss Coupling

Special Features:

Rd mtg flange 2.313 in. Dia, with 4 bolt holes 0.220 min, 0.226 in. Max diameter of bolt holes, welded 0.313 in. From end

Properties:

Thread Class
3b all ends
Connection Style
Gasket seal (boss) all ends
Connection Type
Threaded internal boss all ends
Thread Size
0.750 inches all ends
Nominallength
1.750 inches
Material
Steel
Material Specification
Qq-s-763, class 302 federal specification single material response or qq-s-763, class 304 federal specification single material response
Surface Treatment
Passivate
Style Designator
Plain w/tapered ends
Thread Series Designator
Unjf all ends
NSN
4730-00-439-6034
Part Number
123721-2
Description
Coupling,boss
CAGE
24930

A straight one-piece fitting 12 inches (304 mm) long or under having the same size fitting on each end (straight machine threads other than pipe or hose series). It may have internal threads on both ends or internal threads on one end and external threads on the other designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It is designed to join two bosses or boss fittings. Excludes items having external threaded connections on both ends.

Part 123721-2 NSN 4730-00-439-6034

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26953
FIIG:
A080B0
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
052190
UFC:
30000
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7307992000
  • SITC: 67959
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Other fittings nesoi of iron or nonalloy steel

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