Model: MS21924-4S

Tube To Boss Straight Adapter

Properties:

Thread Class
3a 2nd end bulkhead
Thread Class
3a all ends
Connection Style
Flared w/ gasket seal (boss) 2nd end
Connection Style
Flareless (tube) 1st end
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded external tube 1st end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.438 inches 2nd end bulkhead
Thread Size
0.438 inches all ends
Seat Angle
12.0 degrees 1st end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Nominallength
1.656 inches
Material
Steel comp 347
Material Specification
66 federal standard all material responses
Media For Which Designed
Aeronautical fluid single response
Surface Treatment
Passivate
Thread Series Designator
Unjf 2nd end bulkhead
Thread Series Designator
Unjf all ends
Specification Data
96906-ms21924 government standard
NSN
4730-00-054-5780
Part Number
MS21924-4S
Description
Adapter,straight,tube To Boss
CAGE
96906

An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end designed to accommodate a tube. 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 tube or tube fitting to a boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like. See also coupling, tube and nipple, tube.

Part MS21924-4S NSN 4730-00-054-5780

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22675
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:
052190
UFC:
30000
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

End Items End applications NSN 4730-00-054-5780 is a component of

  • Green Giant H-3 Helicopter

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Schedule B and Export
  • Schedule B: 7307994000
  • SITC: 67959
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Other fittings nesoi of alloy steel not stainless

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