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Datasheet. 638674 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3bg
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
0.250in.
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
prevailing torque all metal design
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.
0.335in.
The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.
0.165in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
clinch
0.425in.
0.382in. ⁓25/64"
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
unjf
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
33.0 rockwell c and 44.0 rockwell c
A designation that is used for the purpose of general identification of the thread.
0.250in. ⁓1/4"
The chemical compound or mechanical mixture properties of which the item is fabricated.
iron alloy 660
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 5735 assn std single material response
An indication of the precious material and its location in the item.
external surface silver
Identification of the precious material contained in the item.
silver
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.
silver
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
ams 2411 assn std single treatment response
Answers.
1EA
Iron alloy 660
28
Right-hand
3bg
Schedule B number: 7318160000
nmfc 093486
Nuts of iron or steel
FSC 5310 ⁓ Nuts and washers
Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.
Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).
NSN 5310-00-247-4799 NUT,SELF-LOCKING,CLINCH
silver surface treated 28 thread quantity per inch right-hand 3bg thread class
- NIIN
- 002474799
- NIIN Date
- 07/18/69
- Schedule B
- 7318160000
- Name Code
- 15892
- FIIG
- A021A0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $4.10 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Contains silver
- 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. | K29109-4-1 | Cage 15653 |
Major End Users Countries and entities
- - Department of The Navy
- - Department of The Air Force
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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)
- Bolts or nuts (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 nuts with similar characteristics
Nothing similar to this part number was found in our inventory
638674 / Nut,self-locking,clinchWhat is the formal definition of this item?
A nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole. an integral feature is incorporated for locking.
