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Datasheet. 277A-20 specification
Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
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.
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
Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.875in. ⁓7/8"
Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.625in.
Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
2.250in. ⁓2-1/4"
Neck Diameter
The length of a straight line which passes through the center of a neck,and terminates at the circumference.
The length of a straight line which passes through the center of a neck,and terminates at the circumference.
0.391in.
Distance From Spherical Head Centerline To Head End
0.312in.
Furnished Items And Quantity
The name and number of those parts furnished with the item of supply that have not been specified elsewhere.
The name and number of those parts furnished with the item of supply that have not been specified elsewhere.
0ne spring lock 3/8 in. washer, stl, pltd; one nut, hex, 3/8-16 UNC-2B, stl, pltd
Distance Across Flats
The distance across the flats.
The distance across the flats.
0.625in.
Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
16
Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.
A designation that is used for the purpose of general identification of the thread.
0.375in. ⁓3/8"
Material
The chemical compound or mechanical mixture properties of which the item is fabricated.
The chemical compound or mechanical mixture properties of which the item is fabricated.
copper alloy and steel
Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
ball
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.
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unc
Answers.
What class is the thread series?
Unc
What is the style?
Ball
What material is the ball stud made of ?
Copper alloy and steel
What is the thread quantity per inch?
16
What is the thread length?
0.875 inches
What is the thread direction?
Right-hand
What is the thread class?
2a
What's the federal classification of 277A-20?
FSC 5307 ⁓ Studs
NSN 5307-01-389-3445 STUD,BALL
unc thread series ball 16 thread quantity per inch 2.250" overall length 0.875" thread length right-hand 2a thread class
- NIIN
- 013893445
- NIIN Date
- 04/22/94
- Schedule B
- Name Code
- 17484
- FIIG
- A051A0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $10.23 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- No precious metals
- 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. | 7523 | Cage 91840 |
Major End Users Countries and entities
- - Department of The Army
- - U.s. Marine Corps
- - Department of The Air Force
Availability for 277A-20 A member of our team will provide you with a price and availability quote
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- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- Rating variable
- 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)
- Nails, iron or steel (less than 35 feet)
- NMFC (national motor freight code)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
Similar by Design Other studs with similar characteristics
Nothing similar to this part number was found in our inventory
277A-20 / Stud,ballWhat is the formal definition of this item?
A metal item with a spherical shaped head and a straight and/or tapered body, usually with a threaded shank.
