DR55205 Lock Washer
5310-00-638-4552
Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.
Request for Quote
Send us a request for quote using the form below. Our team will promptly provide you with the latest pricing and availability details.
Featured Parts
Need Assistance?
Our catalog is extensive, but we understand that sometimes specific needs might not be immediately available. If you could not find the exact products you were searching for, we are here to help!
Contact us directly, and our team will assist you in finding the perfect solution for your requirements.
Contact UsCertified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
- Genuine Manufacturers Parts
- 100% Product Inspection
- 7 Year Sales Record Retention
- Fast On-Time Delivery
- HAZMAT Certified
- Global Shipping
Official Item Classification
- Name
- Lock Washer
- Part Number
- DR55205
- (NSN) National Stock Number
- 5310-00-638-4552
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5310 Nuts and Washers
- (INC) Item Name Code
- 14218
- (FIIG) Federal Item Identification Guide
- A022B0
- Date
- 01/01/1963 (63 years ago)
copper alloy 240 or copper alloy 425 overall material, 0.255 inches minimum and 0.270 inches maximum outside diameter, 0.014 inches minimum and 0.018 inches maximum material thickness, 0.116 inches minimum and 0.123 inches maximum hole diameter, 85.0 rockwell b minimum and 95.0 rockwell b maximum hardness rating
Specs & Compatibility
0.116 inches minimum and 0.123 inches maximum
0.255 inches minimum and 0.270 inches maximum
0.014 inches minimum and 0.018 inches maximum
85.0 rockwell b minimum and 95.0 rockwell b maximum
copper alloy 240 or copper alloy 425 overall
qq-b-750 fed spec 1st material response or astm b36 uns c24000 assn std 1st material response or cda 425 assn std 2nd material response or astm b591 uns c42500 assn std 2nd material response overall
cadmium and chromate overall
qq-b-426,type 2,class 3 fed spec all treatment responses overall
flat internal teeth
81348-ff-w-100 government specification and 88044-an936/canceled/ government standard
1 type and a grade and 1 style and 3 composition or 4 composition
as modified by cadmium w/ chromate plating
Regulatory Compliance
Precious metal content is unknown
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0014218