The Bearing,sleeve, cataloged under National Stock Number 3120-00-710-0188, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-710-0188 |
| Primary Part Number | 7100188 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES OVERALL |
| Corner Shape | CHAMFERED ALL CORNERS |
| Body Outside Diameter | 1.8780 INCHES MINIMUM AND 1.8790 INCHES MAXIMUM IN |
| Hardness Rating | 55.0 ROCKWELL C NOMINAL OVERALL |
| Criticality Code Justification | ADAR AND ADAS |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 1.5020 INCHES MINIMUM AND 1.5040 INCHES MAXIMUM IN |
| Surface Treatment | COPPER OVERALL |
| Material | STEEL COMP 8620 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 7100188 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 3120-00-710-0188 is a Bearing,sleeve, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-710-0188 has 1 manufacturer part number on file: 7100188 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 7100188: Surface Finish: 125.0 MICROINCHES OVERALL; Corner Shape: CHAMFERED ALL CORNERS; Body Outside Diameter: 1.8780 INCHES MINIMUM AND 1.8790 INCHES MAXIMUM IN; Hardness Rating: 55.0 ROCKWELL C NOMINAL OVERALL. 9 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.