1251-1281

12511281 Plain Knurled Nut

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Quality Commitment

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Datasheet. 1251-1281 specification

Thread Pitch Diameters
The minimum and maximum pitch diameter limits of a straight screw thread.

+0.7919/+0.7969in.

Thread Direction
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

Nut Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.

knurled

Nut Diameter

1.140in.

Nut Thickness
A measurement between the opposite flat surfaces of the nut,in distinction from length or width.

0.125in.

Thread Series
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.

uns

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

27

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.812in. ⁓13/16"

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

copper alloy

Surface Treatment
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.

nickel

Answers.

When was the most recent contract awarded?

On 10/29/1997 under contract SP054098M4041MODF0001 for qty 1

What quantity is this sold in?

1EA

What material is the plain knurled nut made of ?

Copper alloy

What is the thread quantity per inch?

27

What is the thread direction?

Right-hand

What is the NSN for 1251-1281?

5310-00-105-4181

How is this classified for shipping?

Schedule B number: 7415290000
nmfc 093460
Copper screws, nuts, bolts, rivets, and other fasteners not threaded

What's the federal classification of 1251-1281?

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 5310-00-105-4181 NUT,PLAIN,KNURLED

nickel surface treated 27 thread quantity per inch right-hand

NIIN
001054181
NIIN Date
07/01/68
Schedule B
7415290000 
Name Code
15886
FIIG
A021A0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$1.53 EA
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. SM447 Cage 04919

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Air Force 
  • - Brazil 
  • - Spain 
  • - Turkey 

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Shipping Information

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)
093460 BOLTS/NUTS NOI BBC/ZINC 
UFC (universal freight code)
48930 

Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

1251-1281 / Nut,plain,knurledWhat is the formal definition of this item?

A nut, round in shape, having all or part of its outer surface knurled. it may have provisions for external wrenching. for items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. see also nut (1), plain, round. (when height or thickness, and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).