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Datasheet. MIL-B-857TYB specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
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
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
1.596in. and 1.750in. ⁓1-3/4"
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.
1.690in. and 1.790in. ⁓1-51/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
hexagon
A measurement from the bottom to the top of the head,in distinction from depth.
0.302in. and 0.364in. ⁓3/8"
0.850in. and 0.875in.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.500in. ⁓1/2"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
13
The chemical compound or mechanical mixture properties of which the item is fabricated.
nickel alloy R-405 or nickel alloy 400
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-N-281 cl a or cl b fed spec all material responses
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.
Unc
Nickel alloy r-405 or nickel alloy 400
13
Hexagon
1.596 inches minimum and 1.750 inches maximum
Right-hand
2a
Schedule B number: 7508900000
nmfc 139820
Other articles of nickel (excluding cloth, grill & netting of nickel wire)
FSC 5305 ⁓ Screws
NSN 5305-01-251-2915 SCREW,CAP,HEXAGON HEAD
unc thread series 13 thread quantity per inch hexagon head style 1.596" thread length right-hand 2a thread class
- NIIN
- 012512915
- NIIN Date
- 03/16/87
- Schedule B
- 7508900000
- Name Code
- 18257
- FIIG
- A003B0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $90.65 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. | 501-7055651 ITEM 19 | Cage 53711 |
| 2. | 218001937 | Cage 96169 |
| 3. | 516-5343926 PIECE 18 | Cage 53711 |
| 4. | 60-01-3657A | Cage 96169 |
Major End Users Countries and entities
- - Department of The Navy
- - United Kingdom
Availability for MIL-B-857TYB A member of our team will provide you with a price and availability quote
Request a Quote »Shipping Information
- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- 85.0
- 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 hardware
- NMFC (national motor freight code)
- 139820 NICKEL BOLTS/NAILS/NUTS/RIVETS ETC
- UFC (universal freight code)
- 70220
Similar by Design Other screws with similar characteristics
Nothing similar to this part number was found in our inventory
MIL-B-857TYB / Screw,cap,hexagon headWhat is the formal definition of this item?
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
