National Item Identification Number
01-128-5151
National Stock Number
Item Name
WASHER,FLAT
Federal Supply Class
5310
Description
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.
Commercial and Government Entity Code (Supplier Data)
70318
21969
ZELENDA MACHINE AND TOOLS CORP
6602 AUSTIN ST
FLUSHING
NY
11374
718-896-2288
D9182
15526
METRIC AND MULTISTANDARD
COMPONENTS CORP
120 OLD SAW MILL RIVER RD
HAWTHORNE
NY
10532
914-769-5020
D9182
03956
NORTHROP GRUMMAN SYSTEMS CORPORATION
DBA SPERRY MARINE
1070 SEMINOLE TRL
CHARLOTTESVILLE
VA
22901
434-974-2366
03956
NORTHROP GRUMMAN SYSTEMS CORPORATION
DBA SPERRY MARINE
1070 SEMINOLE TRL
CHARLOTTESVILLE
VA
22901
434-974-2366
Reference Numbers (Part Numbers)
C6RL05G
DIN125-M5
12ST-M5
125ST-M5
125ST-M5-0
1808399
1808399-4
Required Categories
MATERIAL
SURFACE TREATMENT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
HOLE
Required Description
STEEL COMP 304 OVERALL
PASSIVATE OVERALL
ASTM A360-78 ASSN STD SINGLE TREATMEN