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Datasheet. 431138 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3b
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 style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
square
0.270in. and 0.290in. ⁓19/64"
The national stock number or the identification information of the end equipment for which the item is a part.
w/s: engine, aircraft, TF33-100 (E3A/b/c) ; engine, aircraft, TF-33-P-7 (C-121A/b) ; engine, aircraft, TF33-P-3/5/9 (c/EC-135, B-52H) ; engine, aircraft, TF33-PW-102 (C-135E, EC-135H/k/p)
The shortest straight line between flats,perpendicular to the height.
0.730in. and 0.740in. ⁓3/4"
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
unf
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
24
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
32.0 rockwell c and 38.0 rockwell c
A designation that is used for the purpose of general identification of the thread.
0.312in. ⁓5/16"
The included angle of the countersink.
85.0 degrees nut and 95.0 degrees nut
Indicates the type of bearing surface.
chamfered
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 8740
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 6322 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.
cadmium
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 2400 assn std single treatment response
Answers.
Steel comp 8740
24
Right-hand
3b
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 5310-00-862-7902 NUT,PLAIN,SQUARE
Used on w/s: engine, aircraft, tf33-100 (e3a/b/c); engine, aircraft, tf-33-p-7 (c-121a/b); engine, aircraft, tf33-p-3/5/9 (c/ec-135, b-52h); engine, aircraft, tf33-pw-102 (c-135e, ec-135h/k/p). cadmium surface treated 24 thread quantity per inch right-hand 3b thread class
- NIIN
- 008627902
- NIIN Date
- 01/01/62
- Schedule B
- 7318160000
- Name Code
- 01858
- FIIG
- A021A0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $18.05 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
Major End Users Countries and entities
- - 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
431138 / Nut,plain,squareWhat is the formal definition of this item?
A nut, flat on top and bottom, having 4 flat sides. for items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
