Quick Disconnect Coupling Half

986D971-4

986D971-4
(NSN) National Stock Number
4730-00-408-7912
Federal Supply Classification
4730 Hose, Pipe, Tube, Lubrication and Railing Fittings
Item Name Code
18681
Schedule B Code
7307199030
Summary

3a all ends thread class, 2.694 inches nominal overall length, push-pull all ends quick disconnect method, flared all ends connection style, 1.094 inches nominal leg length, external quick disconnect first quick disconnect end connection type

DAC HCC DMIL RNCC
1 - - 5
RNVC SADC MSDS RNAAC
2 - - AX
Identification

A fluid line fitting having a pipe, tube or hose connection or a through hole to accommodate a bolt, fluid passage on one end. The other end must have an internal or external quick disconnect feature for connecting a mating part to form a quick disconnect coupling assembly. The fitting may incorporate a self-sealing feature for the purpose of automatically shutting off the flow of fluid when disconnected from its mating half. For self-sealing fittings with an external or internal threaded disconnect end, see coupling half, self-sealing. See also, connector, multiple, fluid pressure line.

INC FIIG Concept Condition
18681 A531T0 - 1
Specifications
Thread Class
3a all ends
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Overall Length
2.694 inches nominal
Details The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
Quick Disconnect Method
push-pull all ends
Details The means by which mechanical action completely engages or disengages a mating quick disconnect part.
Connection Style
flared all ends
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.
Leg Length
1.094 inches nominal
Details A measurement of the longest dimension of the leg,in distinction from width.
Connection Type
external quick disconnect first quick disconnect end
Details Indicates the type of connection/s/.
Connection Type
threaded external tube first fluid end connection
Details Indicates the type of connection/s/.
Features Provided
self-sealing
Details Those features,not otherwise specified,which may be required for proper functioning of the item.
Nominal Thread Size
0.562 inches all ends
Details A designation that is used for the purpose of general identification of the thread.
Seat Angle
37.0 degrees
Details The angle of the end surface upon which the mated surface seats.
Nominal Outside Diameter Tube Accommodated
0.375 inches all ends
Details The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.
Material
steel body
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
66 fed std single material response body
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Surface Treatment
passivate body
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Style Designator
male coupling half
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Thread Series Designator
unf all ends
Details A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
S6VEN6-6-57 78357 3 - 5 9 - AX
SVEAN6-6-57 78357 3 - 3 2 - AX
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
30000 - W -
RVC WCC TCC SHC
- 576 Z 9

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Manufacturer
NORTHROP GRUMMAN SYSTEMS CORPORATION DBA ELECTRONIC SYSTEMS
CAGE: 18323
BALTIMORE , MD , 21240-2001
UNITED STATES
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FAQs
Frequently asked questions for NSN 4730-00-408-7912
What is the NIIN of the NSN 4730-00-408-7912?
The National Item Identification Number (NIIN) of the NSN 4730-00-408-7912 is 00-408-7912
When the NSN 4730-00-408-7912 was assigned to the Federal Catalog?
It was assigned 50 years ago, on Wed, May 1, 1974
Does the NSN 4730-00-408-7912 contain any precious metals?
Type/content is unknown
Does the NSN 4730-00-408-7912 contain any hazardous material?
No data in HMIRS

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