The Bearing,roller,rod End, cataloged under National Stock Number 3110-00-159-1638, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Roller Bearing Company of America, Inc.. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-159-1638 |
| Primary Part Number | HMR46AMILG3278 |
| Item Name | Bearing,roller,rod End |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Roller Bearing Company of America, Inc. |
| Status | ACTIVE |
| Shank Diameter | 0.6500 INCHES NOMINAL IN |
| Shank Thread Length | 0.8750 INCHES NOMINAL IN |
| Retainer Fabrication Method | MACHINED |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Shield Quantity | 2 |
| Style Designator | SINGLE ROW, CONCAVE ROLLERS |
| Nominal Thread Size | 0.375 INCHES IN |
| Self-Alignment Angle | 10.00 DEGREES NOMINAL |
| Shank Style | INTERNALLY THREADED |
| Alignment Type | SELF-ALIGNING |
| Surface Treatment | ANODIZE ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Length From Bore Center to Shank End | 2.0000 INCHES NOMINAL IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL RETAINER |
| Material | ALUMINUM ALLOY ROD END BODY |
| Material | STEEL ROLLER |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Self-Alignment Location | INTERNAL |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HMR46AMILG3278 PRIMARY | Roller Bearing Company of America, Inc. (USA) |
| HMR46A PRIMARY | Roller Bearing Company of America, Inc. (USA) |
| HMR46AM1LG3278 PRIMARY | Roller Bearing Company of America, Inc. (USA) |
| HMR46AG PRIMARY | Roller Bearing Company of America, Inc. (USA) |
NSN 3110-00-159-1638 is a Bearing,roller,rod End, manufactured by Roller Bearing Company of America, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-159-1638 has 4 manufacturer part numbers on file: HMR46AMILG3278 (Roller Bearing Company of America, Inc.), HMR46A (Roller Bearing Company of America, Inc.), HMR46AM1LG3278 (Roller Bearing Company of America, Inc.), HMR46AG (Roller Bearing Company of America, Inc.).
Key specifications for HMR46AMILG3278: Shank Diameter: 0.6500 INCHES NOMINAL IN; Shank Thread Length: 0.8750 INCHES NOMINAL IN; Retainer Fabrication Method: MACHINED; Bearing Seal Type: CONTACT. 25 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.