Model: 77556-1

Flange To Boss Straight Adapter

Special Features:

Flange holes threaded 4-4ounc-2b 0.25 full thd

Properties:

Thread Class
3b 2nd end
Bolt Hole Quantity
4 1st end
Connection Style
Gasket seal (boss) 2nd end
Width
1.024 inches 1st end
Length
1.024 inches 1st end
Flange Shape
Rectangular with holes 1st end
Connection Type
Flange 1st end
Connection Type
Threaded internal boss 2nd end
Thready Qty Per Inch (tpi)
12 2nd end
Thread Size
0.875 inches 2nd end
Bolt Hole Diameter
0.112 inches 1st end
Center To Center Distance Between Bolt Holes Along Length
0.812 inches 1st end
Center To Center Distance Between Bolt Holes Along Width
0.812 inches 1st end
Flange Face Design
Plain 1st end
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6 federal specification single material response
Thread Series Designator
Un 2nd end
NSN
4730-01-044-5284
Part Number
77556-1
Description
Adapter,straight,flange To Boss
CAGE
82340

An adapter having a flange connection on one end designed to connect with another flange connection or a compression type mounting pad. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a flange or flange fitting to boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like.

Part 77556-1 NSN 4730-01-044-5284

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29653
FIIG:
A080B0
Concept No.:
1
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:
051400
UFC:
29700
LTL:
77.5
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7609000000
  • SITC: 68427
  • End Use: Finished metal shapes
  • NAICS: 332919
  • USDA: 1

Freight Class: Aluminum tube or pipe fittings (couplings,elbows sleeves)

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