Model: MS51856-21P

Boss Nipple

Properties:

Thread Class
2a all ends
Maximum Operating Temp
250.0 degrees fahrenheit single response
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
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
1.625 inches all ends
Nominallength
1.890 inches
Material
Steel comp 1213
Material Specification
Fed standard 66 federal standard all material responses
Media For Which Designed
Hydraulic fluid 2nd response
Surface Treatment
Phosphate
Surface Treatment Specification
Mil-p-16232, type m or z, class 1 military specification single treatment response
Style Designator
Flareless (tube)
Style Designator
Flareless w/ center wrenching facility
Thread Series Designator
Un 1st end
Furnished Items And Quantity
2 ferrule sleeve and 2 short coupling nut
Specification Data
96906-ms51856 government standard
NSN
4730-00-801-2521
Part Number
MS51856-21P
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 MS51856-21P NSN 4730-00-801-2521

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

Packaging & Shipping

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

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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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