Model: 2551-8-69

Valve Seat

Properties:

Flange Diameter
0.500 inches
Body Outside Diameter
Between 0.351 inches and 0.354 inches
Body Inside Diameter
Between 0.250 inches and 0.257 inches
Flange Seat To Disk End Height
Between 0.328 inches and 0.329 inches
Under Flange Height
Between 0.218 inches and 0.229 inches
Seating Surface Shape
Flat
Material
Steel comp 410 body
Material
Steel comp stellite no. 5 face
Material Specification
Astm-a276 assn standard 1st material response body or astm-a479 assn standard 1st material response body
Style Designator
Plain flanged
NSN
4820-01-049-3383
Part Number
2551-8-69
Description
Seat,valve
CAGE
57574

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 2551-8-69 NSN 4820-01-049-3383

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
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:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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