Model: 51187-N-184

Valve Seat

Special Features:

E/i: 4 inch gate valve

Properties:

Thread Class
3a single threaded portion
Overall Height
0.688 inches
Body Outside Diameter
4.813 inches
Body Inside Diameter
4.062 inches
End Application
Strategic sealift conversion ships class
Seat Angle In Deg
30.000
Thready Qty Per Inch (tpi)
12 single threaded portion
Thread Size
4.000 inches single threaded portion
Seating Surface Shape
Angular
Material
Nickel alloy 400 seat or nickel alloy seat
Material Specification
Qq-n-281 anl federal specification single material response seat or astm a494, grade -30h assn standard single material response seat
Style Designator
Plain
Thread Series Designator
Uns single threaded portion
NSN
4820-01-429-8422
Part Number
51187-N-184
Description
Seat,valve
CAGE
76364

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

Part 51187-N-184 NSN 4820-01-429-8422

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22113
FIIG:
A15500
Concept No.:
App. Key:
A
Cond. Code:
2
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:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.9000lbs
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:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481909090
  • SITC: 74790
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Parts of taps, cocks, valves and similar appliances, nesoi

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