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Datasheet. 2498571 specification
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.4385in. and 0.4435in. ⁓29/64"
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.
1.115in.
The length of a straight line which passes through the center of the recess,and terminates at the circumference.
0.4635in. and 0.4785in.
0.111in. and 0.123in.
A measurement of the smallest dimension of the material,in distinction from length or width.
0.128in. and 0.138in.
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
27.0 rockwell c and 35.0 rockwell c
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.
zzzw
90.0 degrees
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
shoulder beveled on a 30 deg angle
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.
black
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 4140h
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.
oxide film
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-C-13924, class 1 mil spec single treatment response
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
shouldered and recessed
The technical differentiating characteristic/s/ of an item of supply which depart/s/ from the text of a specification or a standard in that it represents a selection of characteristics stated in the specification or standard as being optional,or a variation from one or more of the stated characteristics,or an additional characteristic not stated in the specification or standard.
as modified by special quality control testing for mk 48 torpedo
Answers.
Shouldered and recessed
Steel comp 4140h
0.128 inches minimum and 0.138 inches maximum
1.115 inches
0.4385 inches minimum and 0.4435 inches maximum
Schedule B number: 7616108000
nmfc 194160
Cotters, cotter-pins, washers and similar articles, of aluminum
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 5310-01-031-8410 WASHER,SHOULDERED AND RECESSED
shouldered oxide film surface treated shoulder beveled on a 30 deg angle 0.128" material thickness 1.115" outside diameter 0.4385" hole diameter
- NIIN
- 010318410
- NIIN Date
- 12/02/76
- Schedule B
- 7616108000
- Name Code
- 15935
- FIIG
- A022B0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $6.85 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
Major End Users Countries and entities
- - Department of The Navy
- - Australia
- - Netherlands
- - Turkey
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- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- 50.0
- 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)
- 194160 WASHER OR GASKETS, IRON OR STEEL,
- UFC (universal freight code)
- 55210
Similar by Design Other washers with similar characteristics
Nothing similar to this part number was found in our inventory
2498571 / Washer,shouldered and recessedWhat is the formal definition of this item?
A washer, round in shape, having a centrally located hole. one bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. the thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. for items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. excludes insulator, washer and thrust type washers.
