The Bearing Unit,plain, cataloged under National Stock Number 3130-01-017-1617, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Rotary Vacuum Pumps Inc. Government technical data includes 11 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 | 3130-01-017-1617 |
| Primary Part Number | 4501 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Rotary Vacuum Pumps Inc |
| Status | ACTIVE |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE BEARING |
| Features Provided | REMOVABLE LINER |
| Center to Center Distance Between Mounting Holes Along Width | 4.0000 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Length | 2.0000 INCHES NOMINAL IN |
| Bolt Circle Diameter | 4.3750 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Base Thickness | 0.4062 INCHES MINIMUM AND 0.4688 INCHES MAXIMUM IN |
| Bore Diameter | 0.7500 INCHES NOMINAL IN |
| Material | IRON CAST HOUSING |
| Material | COPPER ALLOY 932 BEARING |
| Load Capability Type | RADIAL |
| 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 |
|---|---|
| 4501 PRIMARY | Rotary Vacuum Pumps Inc (USA) |
NSN 3130-01-017-1617 is a Bearing Unit,plain, manufactured by Rotary Vacuum Pumps Inc, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-017-1617 has 1 manufacturer part number on file: 4501 (Rotary Vacuum Pumps Inc).
Key specifications for 4501: Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE BEARING; Features Provided: REMOVABLE LINER; Center to Center Distance Between Mounting Holes Along Width: 4.0000 INCHES NOMINAL IN; Center to Center Distance Between Mounting Holes Along Length: 2.0000 INCHES NOMINAL IN. 11 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.