Model: 4M307-2-20

Fluid Flow Restrictor

Properties:

Cross Sectional Shape
Rectangular
Hole Diameter
0.312 inches
Outside Diameter
1.234 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.023 inches and 0.027 inches
Length
0.025 inches
Overall Diameter
1.234 inches
Thread Provision
Unthreaded
End Application
F-15s acft
Orifice Diameter
0.312 inches
Design Type
Plate
Part Name Assigned By Controlling Agency
Restrictor, cooling air
Material
Aluminum alloy, qq-a-225/8, alloy 6061, t6
Material
Aluminum alloy 6061
Material Specification
Qq-a-250/11, cond t6 federal standard single material response
Surface Treatment Specification
Mil-c-5541, class 3 military specification single treatment response
Surface Treatment
Anodized, mil-a-8625, type 2
NSN
4730-01-453-2708
Part Number
4M307-2-20
Description
Restrictor,fluid Flow
CAGE
59570

An item of solid one-piece construction, designed to restrict the flow of a fluid through it. It has an orifice of a smaller size than the diameter of flow into it. Excludes items such as valve (1), (as modified); and others with an adjustable orifice. Excludes pipe, tube, or hose fittings with restricted passages and items designed to test fluid flow. For items containing screens or filters, see restrictor unit, fluid flow.

Part 4M307-2-20 NSN 4730-01-453-2708

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18263
FIIG:
T359-D
Concept No.:
App. Key:
DA
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:
A
ESD:
ESD:
MMAC:
SX
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:
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:
052190
UFC:
30000
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 7616108000
  • SITC: 69440
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Cotters, cotter-pins, washers and similar articles, of aluminum

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