21FSSB

Butterfly Valve

NSN 4820-00-286-7900

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
UOM:
NIIN:
002867900

Detail Specifications

Pipe Size Accommodated:
4.000 inches 1st end
Valve Operation Method:
Manual
Connection Type:
Unthreaded internal pipe 1st end
Mounting Facility:
Threaded fastener
Face To Face Distance:
2.000 inches
Material:
Iron body
Material:
Rubber seat
Material:
Steel flow control device
Material:
Steel stem
Material Specification:
66 federal standard single material response stem and aisi 316/sae 30316 assn standard single material response stem
Material Specification:
66 federal standard single material response flow control device and aisi 316/sae 30316 assn standard single material response flow control device
Material Specification:
Mil-r-15624, cl 3 military specification single material response seat
Style Designator:
Straight through flanged ends
NSN:
4820-00-286-7900
Item Name:
Retarder,exhaust
Cage Code:
14959

Manufacturer Part Numbers

No other part numbers with same form, fit, and function found.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05489
FIIG:
A046B0
Concept No.:
1
App. Key:
AC
Cond. Code:
2
Status:
A

Part Materials

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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Definition Definition of approved item name (AIN): "Exhaust Retarder"

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

MOE Major Organizational Entities

Entity
DSOR
User:
TENNESSEE VALLEY AUTHORITY Tennessee Valley Authority
DSOR:
Import / Export
  • Schedule B: 8481803030
  • SITC: 74780
  • End Use: Industrial machines, other
  • NAICS: 332919
  • USDA: 1

Classification: Butterfly type taps, cocks and valves of iron, hand operated


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