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Datasheet. 51-99-181-12 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
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.
1.190in. ⁓1-13/64"
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.
0.560in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.250in. ⁓1/4"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
slot
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.250in. ⁓1/4"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 303
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
astm A582 assn std single material response
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.
MIL-F-14072 mil spec single treatment 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.
unf
Answers.
1EA
Unf
Steel comp 303
28
Knurled no. 1
Right-hand
3a
Schedule B number: 7318152000
nmfc 066440
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-035-5353 SCREW ASSEMBLY,PANEL
unf thread series passivate surface treated 28 thread quantity per inch knurled no. 1 head style right-hand 3a thread class
- NIIN
- 010355353
- NIIN Date
- 02/11/77
- Schedule B
- 7318152000
- Name Code
- 33044
- FIIG
- A003B0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $471.03 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. | 138C574H12 | Cage 97942 |
Major End Users Countries and entities
- - Department of The Air Force
- - Spain
- - Canada
Availability for 51-99-181-12 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)
- 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)
- Metal hardware
- NMFC (national motor freight code)
- 066440 FASTENERS CURTAIN/SNAP METAL
- UFC (universal freight code)
- 36960
Similar by Design Other screw assemblys with similar characteristics
Nothing similar to this part number was found in our inventory
51-99-181-12 / Screw assembly,panelWhat is the formal definition of this item?
A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. attached to panel by threaded bushing or by flaring end of stand-off, or bushing. used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. may be spring loaded.
