1220-00

122000 Lock Washer
Home » Catalog » Nuts & Washers (p. 2569) » Lock Washers (p. 1) » Part Number 1220-00

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Quality Commitment

Serving our customers with quality and safety first.

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Datasheet. 1220-00 specification

Hole Diameter
The length of a straight line which passes through the center of a hole,and terminates at the circumference.

0.384in. and 0.398in. ⁓13/32"

Outside Diameter
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.

0.670in. and 0.692in.

Material Thickness
A measurement of the smallest dimension of the material,in distinction from length or width.

0.032in. and 0.040in.

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

mrap RG-33

Hardness Rating
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

40.0 rockwell c and 50.0 rockwell c

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

steel comp 1050 or steel comp 1551 or steel comp 1059 or steel comp 1060 or steel comp 1561 or steel comp 1064

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

66 fed std all material responses

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.

chromate

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

NAS-90725 national std/spec single treatment response

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

flat internal teeth

Answers.

What quantity is this sold in?

1HD

What is the style?

Flat internal teeth

What material is the lock washer made of ?

Steel comp 1050 or steel comp 1551 or steel comp 1059 or steel comp 1060 or steel comp 1561 or steel comp 1064

What is the thickness?

0.032 inches minimum and 0.040 inches maximum

What is the outside diameter?

0.670 inches minimum and 0.692 inches maximum

What is the inside hole diameter?

0.384 inches minimum and 0.398 inches maximum

What is the NSN for 1220-00?

5310-00-595-7237

How is this classified for shipping?

Schedule B number: 7318210000
nmfc 194160
Spring washers and other lock washers, iron or steel

What's the federal classification of 1220-00?

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 5310-00-595-7237 WASHER,LOCK

Used on mrap rg-33. flat internal teeth chromate surface treated 0.032" material thickness 0.670" outside diameter 0.384" hole diameter

NIIN
005957237
NIIN Date
01/01/63
Schedule B
7318210000 
Name Code
14218
FIIG
A022B0
Item Weight
0.300lbs
Item Dimensions
--
QUP
1 
Historical Price
$3.83 HD
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. 1220+00 Cage 78189
2. MILW6986 Cage 81349
3. 5962 Cage 03476
4. 138544 Cage 7X677
5. BS8-2334 PIECE1 Cage 63857
6. 791-514-9011 Cage 99193
7. 1229E421 Cage D9182
8. 1019068-042 Cage 0HBH2
9. 411100-42 Cage 96214
10. MS35333-42 Cage 0158B
11. 0706047 Cage S3002
12. 55961 Cage 96046
13. 138544 Cage 89346
14. MS35333-42 Cage 80205
15. 6232 Cage 64829
16. 200422A Cage 1ML14
17. 801708 Cage 49185
18. M256 Cage 61208
19. PE80 Cage 66289
20. 0906960-0 Cage 6N299
21. 721336H Cage 89346
22. 802492 Cage 19203
23. 4198000-014 Cage 82577
24. 4198000-014 Cage 05869
25. 138544 Cage 12204
26. M2046S Cage 61208
27. PE56A Cage 66289
28. 456702 Cage 24617
29. 422H044H14 Cage 88725
30. 3-8 Cage 05241
31. 200422A Cage 28265
32. XX002-0667 Cage H2229
33. XX002-0671 Cage H2229
34. 70034-42 Cage 95097
35. 801708 Cage 02280
36. 0906960 Cage 92392
37. 906960 Cage 92392
38. 3B4506 Cage 14544
39. MS35333-42 Cage 96906
40. AN936A616 Cage 88044
41. MS35333-59 Cage 96906
42. 6F6 Cage 12603
43. 34907S2 Cage 23040
44. 10082543 Cage A486G
45. 1019068-042 Cage 05037
46. 138544 Cage 24617
47. 210-013 Cage 80009
48. 5310005957237 Cage SCY13
49. 138544 Cage 31007

Major End Users Countries and entities

  • - National Aeronautics And Space Administration 
  • - National Aeronautics And Space Administration 
  • - National Aeronautics And Space Administration 
  • - Department of The Navy 
  • - Department of The Army 
  • - Department of The Air Force 
  • - U.s. Marine Corps 
  • - U.s. Coast Guard 
  • - Austria 
  • - Finland 
  • - Lithuania 
  • - Poland 
  • - Bulgaria 
  • - Brazil 
  • - Spain 
  • - Singapore 
  • - Kuwait 
  • - Morocco 
  • - Egypt 
  • - Saudi Arabia 
  • - Malaysia 
  • - Thailand 
  • - Australia 
  • - Belgium 
  • - Canada 
  • - New Zealand 
  • - France 
  • - Germany 
  • - Republic of Korea 
  • - United Kingdom 
  • - Philippines 
  • - Netherlands 
  • - Portugal 
  • - Italy 
  • - Denmark 
  • - Norway 
  • - Greece 
  • - Turkey 
  • - Nato Maintenance And Supply Agency 

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Shipping Information

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

1220-00 / Washer,lockWhat is the formal definition of this item?

A washer which is usually round with a centrally located hole. its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. it may be made of one or two pieces