Model: MS21902K20

Boss Nipple

Properties:

Thread Class
3a all ends
Connection Style
External seat for gasket seal (boss) all ends
Connection Type
Threaded external boss all ends
Thready Qty Per Inch (tpi)
12 all ends
Thread Size
1.625 inches all ends
Nominallength
1.750 inches
Material
Steel comp 316 or steel comp 304
Material Specification
Qq-s-763 federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-s-5002 military specification 1st treatment response and qq-p-35, type 1 federal specification 2nd treatment response
Style Designator
Flareless (tube)
Thread Series Designator
Unj all ends
NSN
4730-01-316-6345
Part Number
MS21902K20
Description
Nipple,boss
CAGE
96906

A straight, one-piece fitting used to join two bosses or boss fittings. Both ends are the same size and have external machine threads (straignt threads other than pipe or hose series). It is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. The center section may be suitably shaped to accommodate a wrench.

Part MS21902K20 NSN 4730-01-316-6345

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26952
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

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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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