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Datasheet. 51218-1-108 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.
0.880in. ⁓57/64"
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.
2.750in. ⁓2-3/4"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
hexagon
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.107in. and 0.112in. ⁓1/8"
0.500in.
0.405in. and 0.420in.
1.250in.
1.870in.
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 holes provided.
1
Indicates the type of hole(s) provided in the item.
drilled
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
13
The style designation that most nearly corresponds to the appearance of the hole configuration.
hexagon flats
The number of externally relieved diameters on the body,adjacent to the head.
1
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
navy special project
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
FED66 300series fed std all material responses or d 18-8 mfr ref 4th material response
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
Steel
13
0.107 inches minimum and 0.112 inches maximum
Hexagon
0.880 inches
Right-hand
2a
Schedule B number: 7318152000
nmfc 096630
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-396-9150 SCREW,EXTERNALLY RELIEVED BODY
unc thread series navy special project 13 thread quantity per inch 0.107" hole diameter hexagon head style 0.880" thread length right-hand 2a thread class
- NIIN
- 013969150
- NIIN Date
- 09/28/94
- Schedule B
- 7318152000
- Name Code
- 01852
- FIIG
- A003B0
- QUP
- Historical Price
- $3.80 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
Major End Users Countries and entities
- - Department of The Navy
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- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- 70.0
- 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)
- 096630 SCREWS NOI BRASS/BRONZE/COPPER
- UFC (universal freight code)
- 50590
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Nothing similar to this part number was found in our inventory
51218-1-108 / Screw,externally relieved bodyWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). it is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. see also bolt, externally relieved body and bolt, internal wrenching.
