Model: AS21916K6-4

Tube Reducer

Special Features:

Weapon system essential

Properties:

Thread Class
3a all ends
Reducer Type
Concentric
End Application
Landing craft air cushion (lcac)
Connection Style
Flareless (tube) all ends
Connection Type
Threaded external tube all ends
Thread Size
0.437 inches 2nd end
Thread Size
0.562 inches 1st end
Seat Angle
12.0 degrees all ends
Criticality Code Justification
Feat
Outside Diameter Tube Accommodated
0.250 inches 2nd end
Outside Diameter Tube Accommodated
0.375 inches 1st end
Nominallength
1.219 inches
Material
Steel comp 316
Thread Series Designator
Unjf all ends
Specification Data
96906-ms21916 rev g government standard
Nondefinitive Specification/std Data
4 size and carbon steel material
NSN
4730-01-449-8777
Part Number
AS21916K6-4
Description
Reducer,tube
CAGE
81343

A straight tube fitting having a different size connection on each end. It is designed to join two tubes of different sizes. Excludes bushing (as modified).

Part AS21916K6-4 NSN 4730-01-449-8777

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
08506
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:
A
ESD:
ESD:
MMAC:
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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: 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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