The Housing,bearing Unit, cataloged under National Stock Number 3130-01-550-0295, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Seal Master Corp Dba Seal Master Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-550-0295 |
| Primary Part Number | MP-23 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Seal Master Corp Dba Seal Master Corp |
| Status | ACTIVE |
| Housing Height | 4.187 INCHES NOMINAL IN |
| Style Designator | PILLOW BLOCK, SOLID |
| Center to Center Distance Between Mounting Holes Along Width | 5.000 INCHES MINIMUM AND 6.375 INCHES MAXIMUM IN |
| Housing Width | 8.000 INCHES NOMINAL IN |
| Base Length | 2.250 INCHES NOMINAL IN |
| Height From Bottom of Base to Bore Centerline | 2.125 INCHES NOMINAL IN |
| 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 |
|---|---|
| MP-23 PRIMARY | Seal Master Corp Dba Seal Master Corp (USA) |
| Reference | Meaning |
|---|---|
| 6D50314 ITEM HO8 | 5/1 Secondary reference Df Fan Services Inc Dba Clarage Fan Co |
NSN 3130-01-550-0295 is a Housing,bearing Unit, manufactured by Seal Master Corp Dba Seal Master Corp, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-550-0295 has 1 manufacturer part number on file: MP-23 (Seal Master Corp Dba Seal Master Corp).
Key specifications for MP-23: Housing Height: 4.187 INCHES NOMINAL IN; Style Designator: PILLOW BLOCK, SOLID; Center to Center Distance Between Mounting Holes Along Width: 5.000 INCHES MINIMUM AND 6.375 INCHES MAXIMUM IN; Housing Width: 8.000 INCHES NOMINAL IN. 6 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.