The Bearing,sleeve, cataloged under National Stock Number 3120-00-518-7204, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-518-7204 |
| Primary Part Number | 5187204 |
| 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 |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE LEFT FLANGE BODY CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Flange Outside Diameter | 1.9950 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN |
| Body Outside Diameter | 1.5020 INCHES MINIMUM AND 1.5030 INCHES MAXIMUM IN |
| Hardness Rating | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL |
| Criticality Code Justification | ADAR AND ADAS |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Body Inside Diameter | 1.2520 INCHES MINIMUM AND 1.2530 INCHES MAXIMUM IN |
| Lubricant Accommodation Style | GROOVED DOUBLE LOOP |
| Flange Width | 0.0890 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 5187204 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| 3120005187204 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3120-00-518-7204 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 3120-00-518-7204 has 1 manufacturer part number on file: 5187204 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-355-2889. Verify interchangeability with system specifications before substitution.
Key specifications for 5187204: Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE LEFT FLANGE BODY CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER. 14 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.