ST3M550A4-9

ST3M550A49 Pin-rivet

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Datasheet. ST3M550A4-9 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

3a

Thread Direction
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

Fastener Length
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.

0.947in. and 0.967in. ⁓31/32"

Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

flush countersunk

Width Between Flats

0.094in. and 0.096in.

Shank Diameter
The length of a straight line which passes through the center of the body of the shank and terminates at the circumference.

0.2797in. and 0.2807in.

Shank Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the shank.

PIN-Rivet, straight, threaded

Head Major Diameter

0.421in. and 0.426in.

Lubrication
A substance designed to provide a reduction of friction between the two surfaces in contact.

cetyl alcohol

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

w/s: aircraft, stratolifter C-135; aircraft, thunderbolt ii, A-10; joint stars target radar system; aircraft, stratofortress B-52

Grip Length
A measurement of the longest dimension of the grip,in distinction from width.

0.567in.

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

28

Minimum Tensile Strength
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.

160000 pounds per square inch

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.250in. ⁓1/4"

Shear Strength
The minimum load,applied perpendicularly to the longitudinal axis of an item,at which point the item will fracture when subjected to the standard shear test method.

95000 single pounds per square inch

Countersink Angle
The included angle of the countersink.

100.0 degrees

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp E4340 or steel comp 4340 or steel comp 4140 or steel comp 8740

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

MIL-S-5000 mil spec 1st material response or MIL-S-5000 mil spec 2nd material response or MIL-S-5626 mil spec 3rd material response or MIL-S-6049 mil spec 4th material response

Surface Treatment
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.

cadmium

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

QQ-P-416, ty 2, cl 3 fed spec single treatment response

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unjf

Answers.

What class is the thread series?

Unjf

What material is the pin-rivet made of ?

Steel comp e4340 or steel comp 4340 or steel comp 4140 or steel comp 8740

What is the shear strength?

95000 single pounds per square inch

What is the thread quantity per inch?

28

What is the grip length?

0.567 inches maximum

What is the head style?

Flush countersunk

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for ST3M550A4-9?

5320-00-279-4728

How is this classified for shipping?

Schedule B number: 7318230000
nmfc 106510
Rivets of iron or steel

What's the federal classification of ST3M550A4-9?

FSC 5320 ⁓ Rivets

NSN 5320-00-279-4728 PIN-RIVET

Used on w/s: aircraft, stratolifter c-135; aircraft, thunderbolt ii, a-10; joint stars target radar system; aircraft, stratofortress b-52. unjf thread series cadmium surface treated 95000 single pounds per square inch shear strength 28 thread quantity per inch 0.567" grip length flush countersunk head style right-hand 3a thread class

NIIN
002794728
NIIN Date
08/12/73
Schedule B
7318230000 
Name Code
67165
FIIG
A528U0
Item Weight
0.100lbs
Item Dimensions
--
QUP
 
Historical Price
$3.15 EA
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. HL219-8-9 Cage 73197
2. HL219-8-9 Cage 56878
3. BACB30KF8-9 Cage 17446
4. BACB30KF8-9 Cage 1RC86
5. BACB30KF8-9 Cage 22337
6. BACB30KF8-9 Cage 06725
7. BACB30KF8-9 Cage 73197
8. BACB30KF8-9 Cage 56878
9. BACB30KF8-9 Cage L4528
10. HL219-8-9 Cage L4528
11. HL219-8-9 Cage C4293
12. BACB30KF8-9 Cage 06950
13. HL219-8-9 Cage 06950
14. HL219-8-9 Cage 17446
15. BACB30KF8-9 Cage 17448
16. BACB30KF8-9 Cage 60516
17. HL219-8-9 Cage 60516
18. BACB30KF8-9 Cage 81205
19. HL219-8-9 Cage 92215
20. GB510BD4-9 Cage 26512
21. HL219-8-9 Cage 80539
22. HL219-8-9 Cage R1120
23. HL219-8-9 Cage 50392

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Air Force 
  • - Brazil 
  • - Australia 
  • - Germany 
  • - Turkey 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
50.0 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Metal and metal products, nos, (less than 35 feet) 
NMFC (national motor freight code)
106510 RIVETS I/S PLAIN/GALVANIZED ETC 
UFC (universal freight code)
54760 

Similar by Design Other pin-rivets with similar characteristics

Nothing similar to this part number was found in our inventory

ST3M550A4-9 / Pin-rivetWhat is the formal definition of this item?

A metallic or nonmetallic item, headed at one end, with a cylindrically shaped shank which may be tapered, grooved, or threaded. a locking collar or sleeve may be provided to perform the same holding action as the clinching portion of a conventional rivet. the shank may include an external wrenching facility which breaks off at a predetermined applied torque.