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Datasheet. FF-S-86 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
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.438in. ⁓29/64"
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.
0.438in. ⁓29/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
knurled no. 1
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.218in. and 0.226in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.134in. and 0.138in. ⁓9/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
hexagon
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.138in. (UTS #6)
The shortest straight line between flats,perpendicular to the height.
0.109in. and 0.111in. ⁓1/8"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
32
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
80000 pounds per square inch
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
39.0 rockwell c and 45.0 rockwell c
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
66 fed std all material responses
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.
passivate
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-35 fed spec single treatment response
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.
fscm 80204-ansi B18.3 table 3 size 6
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
The document designator of the specification or standard which established the item of supply.
81348-FF-S-86 government specification
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.
6 type and 6-32 size and 7/16in. length and 3a class and unc series
Answers.
Unc
Steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384
32
Knurled no. 1
0.438 inches
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-003-4252 SCREW,CAP,SOCKET HEAD
unc thread series passivate surface treated 32 thread quantity per inch knurled no. 1 head style 0.438" thread length right-hand 3a thread class
- NIIN
- 010034252
- NIIN Date
- 04/23/75
- Schedule B
- 7318152000
- Name Code
- 16282
- FIIG
- A003B0
- 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. | 6-32UNC-3AX0.438CRES | Cage 70318 |
| 2. | 6-32UNC3A7/16SOCKETHEAD | Cage 70318 |
| 3. | 0.138-32-3AX0.438 HEXSOCKET CRES | Cage 70318 |
| 4. | 6-32-3A X 7/16 HEX SOCKETHD CRES | Cage 70318 |
Major End Users Countries and entities
- - Brazil
- - Germany
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FF-S-86 / Screw,cap,socket headWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.
