Model: 1661-D PC19

Valve Seat

Special Features:

4 lugs; temperature regulating valve type s, sz 1.250 in.; lower seat

Properties:

Thread Class
2a single threaded portion
Flange Diameter
1.625 inches
Body Inside Diameter
1.125 inches
End Application
Nimitz class cvn
Flange Seat To Disk End Height
0.188 inches
Under Flange Height
0.250 inches
Seat Angle In Deg
30.000
Thread Size
1.500 inches single threaded portion
Seating Surface Shape
Angular
Material
Copper alloy seat
Style Designator
Threaded flanged
Thread Series Designator
Unef single threaded portion
NSN
4820-01-456-2316
Part Number
1661-D PC19
Description
Seat,valve
CAGE
75545

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 1661-D PC19 NSN 4820-01-456-2316

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

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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