Round economy spacers are aluminum clearance spacers designed for #4, #6, and #8 screw applications, with a cylindrical form and screw clearance holes. Part number 398 is a 0.250 inch (6.4 mm) long spacer with a 0.167 inch (4.2 mm) outer diameter and a #4 screw clearance hole. The spacer is made of aluminum conforming to ASTM B211 with a clear iridite finish per MIL-C-5541. It is intended for mechanical spacing applications where electrical isolation is not required.
Part Number: 398
"Round Spacer Unthreaded #4 Aluminum 0.250"" (6.35mm) 1/4"""
Standoffs & Spacers AL SPCR #4X1/4
KEYSTONE 398 SPACER/STANDOFF, ROUND AL 0.167INX0.25IN
SPACER, ROUND AL 0.167INX0.25IN; Spacer Type:Round; Spacer Material:Aluminium; Outer Diameter:4.242mm; Inner Diameter:3.048mm; Overall Length:6.35mm; Product Range:-; Body Diameter:0.167"; Bore Size:3mm; Fastener Material:Aluminium RoHS Compliant: Yes
Aluminum Economy Spacers, Inner Diameter 0.125 in. ± 0.005 in.
| Keystone Electronics Corp. | DigiKey | Heilind Electronics, Inc. | VAST STOCK CO., LIMITED | Utmel Electronic Limited | Newark, An Avnet Company | Allied Electronics, Inc. | |
|---|---|---|---|---|---|---|---|
| Product Category | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs |
| Product Number | 398 | 36-398-ND | 398 | 398 | 443-398 | 16C7453 | 70182026 |
| Product Name | Round Economy Spacer | Board Spacers, Standoffs | ALUMINUM ECONOMY SPACER | Standoffs & Spacers | KEYSTONE 398 SPACER/STANDOFF, ROUND AL 0.167INX0.25IN | Spacer, Round Al 0.167Inx0.25In; Spacer Type Keystone | Spacer; 0.125 + 0.005 in.; Aluminum; 0.167 + 0.007 in.; 0.250 in.; #4 |
| Type & Shape | Spacer; Round | Spacer; Round | Spacer | Standoff | Spacer; Standoff | Round | Spacer; Round |
| Material | Metal; Aluminum | Aluminum | Aluminum; Aluminum | ||||
| Outside Diameter | 0.1670 inch (4.24 mm) | 0.1670 inch (4.24 mm) | 0.1670 inch (4.24 mm) | 0.1670 inch (4.24 mm) |
