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Datasheet. AS21-4 specification
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.252in. and 0.260in. ⁓17/64"
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.
0.521in. and 0.541in.
The length of a straight line which passes through the center of the recess,and terminates at the circumference.
0.334in. and 0.344in.
A measurement of the smallest dimension of the material,in distinction from length or width.
0.064in. and 0.080in.
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
24.0 rockwell c and 37.0 rockwell c
90.0 degrees
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 5525 assn std single material response or ams 5732 assn std single material response
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
15 recessed
Answers.
1EA
15 recessed
Iron alloy 660
0.064 inches minimum and 0.080 inches maximum
0.521 inches minimum and 0.541 inches maximum
0.252 inches minimum and 0.260 inches maximum
Schedule B number: 7318220000
nmfc 194160
Washers other than lock washers, 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 5310-01-288-1256 WASHER,RECESSED
15 recessed 0.064" material thickness 0.521" outside diameter 0.252" hole diameter
- NIIN
- 012881256
- NIIN Date
- 11/03/88
- Schedule B
- 7318220000
- Name Code
- 15933
- FIIG
- A022B0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $13.65 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. | 88-50001-002 | Cage 15090 |
| 2. | 88-50001-002 | Cage 14170 |
| 3. | 88-50001-002 | Cage 15090 |
| 4. | 88-50001-002 | Cage 14170 |
Major End Users Countries and entities
- - Department of The Air Force
Availability for AS21-4 A member of our team will provide you with a price and availability quote
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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
AS21-4 / Washer,recessedWhat is the formal definition of this item?
A washer of any peripheral shape having a centrally located hole. both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. the thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. the maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. excludes washer, concave, retainer, packing, and thrust type washers. see also spacer, sleeve; and spacer, stepped.
