The Bearing,washer,thrust, cataloged under National Stock Number 3120-00-159-8596, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-159-8596 |
| Item Name | Bearing,washer,thrust |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES LEFT SIDE |
| Corner Shape | SQUARE SECOND OUTSIDE CORNER |
| Corner Shape | SQUARE FOURTH OUTSIDE CORNER |
| Corner Shape | SQUARE FIRST OUTSIDE CORNER |
| Corner Shape | SQUARE THIRD OUTSIDE CORNER |
| Corner Shape | SQUARE FIRST INSIDE CORNER |
| Corner Shape | SQUARE SECOND INSIDE CORNER |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Flange Thickness | 0.1550 INCHES MINIMUM AND 0.1570 INCHES MAXIMUM IN |
| Overall Thickness | 0.5000 INCHES NOMINAL IN |
| Hardness Rating | 90.0 ROCKWELL B NOMINAL OVERALL |
| Style Designator | ROUND |
| Material Document and Classification | AMS 4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 3.3440 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SHOULDERED |
| Outside Diameter | 3.7500 INCHES NOMINAL IN |
| Shank Outside Diameter | 3.5022 INCHES MINIMUM AND 3.5030 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Test Data Document | 84955-CKPS212 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | COPPER ALLOY 630 OVERALL |
| Center Hole Shape Style | ROUND |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| K641246-11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-00-159-8596 is a Bearing,washer,thrust, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
Key specifications for 3120-00-159-8596: Surface Finish: 32.0 MICROINCHES LEFT SIDE; Corner Shape: SQUARE SECOND OUTSIDE CORNER; Corner Shape: SQUARE FOURTH OUTSIDE CORNER; Corner Shape: SQUARE FIRST OUTSIDE CORNER. 21 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.