The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-166-9143, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is New Hampshire Ball Bearings Inc Div Astro Division. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 — Bearings, Plain, Unmounted (FSG 31) |
| Manufacturers | New Hampshire Ball Bearings Inc Div Astro Division (CAGE 15860); The Boeing Company (CAGE 8V613) |
| Parameter | Value |
|---|---|
| NSN | 3120-01-166-9143 |
| Primary Part Number | HS4810-KR12CEGH |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | New Hampshire Ball Bearings Inc Div Astro Division |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| HS4810-KR12CEGH PRIMARY | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| HS4810-KR12CEGH PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| KR12-CEGH | 5/9 Secondary reference Kamatics Corporation |
| KDSY12-42 | 5/1 Secondary reference U.S. Government activity |
| HS4810-KR12CEGH | 5/9 Secondary reference Master Research and Mfg Inc Bearing Research and Technology Div |
| HS4810-KR12CEGH | 3/2 Design control — primary reference U.S. Government activity |
| 03-659-12E-001 | 5/9 Secondary reference Rbc Transport Dynamics Corp Div Rbc Transport Dynamics |
| HS4810-KR12CEGH | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| LYG12E-810 | 5/9 Secondary reference Rbc Specline Inc Dba Specline Inc |
| HSBY12V4003 | 5/1 Secondary reference New Hampshire Ball Bearings Inc Div Astro Division |
NSN 3120-01-166-9143 is a Bearing,plain,self-Aligning, manufactured by New Hampshire Ball Bearings Inc Div Astro Division, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-166-9143 has 2 manufacturer part numbers on file: HS4810-KR12CEGH (New Hampshire Ball Bearings Inc Div Astro Division), HS4810-KR12CEGH (The Boeing Company).
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.