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Datasheet. 4177-8H specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
RIGHT-Hand
The process used in manufacturing the item.
cold drawn or rolled
Indicates whether or not a ferrous alloy object has been subjected to a process whereby the outer portion is made substantially harder than the inner portion or core.
not casehardened
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
0.650in. and 0.670in. ⁓43/64"
Designates the thread diameter and number of threads per specific measurement scale.
0.750-16
The length of a straight line which passes through the center of the tube for which designed,and terminates at the outside circumference.
0.500in.
The angle of the end surface upon which the mated surface seats,expressed in degrees.
33.0
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unjf
The shortest straight line between flats,perpendicular to the height.
0.863in. and 0.887in. ⁓57/64"
The load in tension applied in a longitudinal direction or the load that can be applied in a plane perpendicular to the axial centerline without rupture or permanent deformation of the material.
66000.0 pounds per square inch proof load
The smallest length of a straight line which passes through the center of the two surfaces of a circular item,and terminates at the inside circumference.
0.505in. and 0.508in.
The application and/or function for which the item is designed.
u/o h temp, hp pneumatic and hyd sys, fuel sys, and cyrogenic sys
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
drilled hex. 3 holes 0.051 in. min 0.056 in. max dia
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.
aluminum alloy, QQ-A-225/6, alloy 2024, T851
The chemical compound or mechanical mixture properties of which the item is fabricated.
aluminum alloy 2024
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-A-225/6, alloy 2024, T851 fed spec single material response
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.
anodize
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
inverted nut, tube, flare
Consists of plating,dip,and/or coating that cannot be wiped off.plating and/or coating is any chemical and/or metallic additive,electrochemical,or mild mechanical process which protects a surface.
anodized, MIL-A-8625
The document designator of the specification or standard which established the item of supply.
80205-NAS591 professional/industrial association standard
Answers.
Inverted nut, tube, flare
Aluminum alloy 2024
66000.0 pounds per square inch minimum proof load
Right-hand
3a
FSC 4730 ⁓ Hose, pipe, tube, lubrication, and railing fittings
Excluding air conditioning-heating fittings (fsc 4520); bituminized fiber and concrete fittings (fsc 5630); conduit boxes and fittings (fsc 5975); downspout fittings (fsc 5670); medical and surgical fittings (fsc 6515); laboratory fittings (fsc 6640); post caps and rail ends (fsc 5660); machine thread bushings and plugs (fsc 5365).
NSN 4730-01-260-8069 INVERTED NUT,TUBE COUPLING
inverted nut, tube, flare anodize surface treated drilled hex. 3 holes 0.051 in. min 0.056 in. max dia 66000.0 pounds per square inch proof load strength rating 0.650" overall length right-hand 3a thread class
- NIIN
- 012608069
- NIIN Date
- 08/05/87
- Schedule B
- Name Code
- 03857
- FIIG
- T385-B
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Metal content unknown
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | NAS591-8H | Cage 80205 |
| 2. | NAS591-8H | Cage 22995 |
Major End Users Countries and entities
- - Canada
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4177-8H / Inverted nut,tube couplingWhat is the formal definition of this item?
An externally threaded fastening device which has an internal or external seat, designed to mate with the seat of an internally threaded tube fitting for the purpose of securing the tube to the fitting to form a leakproof connection.
