The Bearing Unit,plain, cataloged under National Stock Number 3130-00-451-2175, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Ami Industries, Inc Div Utc Aerospace Systems. 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 | 3130-00-451-2175 |
| Primary Part Number | 598B20028 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Ami Industries, Inc Div Utc Aerospace Systems |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-6889 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Mounting Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Mounting Holes Along Width | 1.125 INCHES NOMINAL IN |
| Alignment Type | RIGID |
| Shaft End Type | OPEN |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Base Thickness | 0.140 INCHES MINIMUM IN |
| Bore Diameter | 0.3860 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Height From Bottom of Base to Bore Centerline | 0.120 INCHES NOMINAL IN |
| 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 |
|---|---|
| 598B20028 PRIMARY | Ami Industries, Inc Div Utc Aerospace Systems (USA) |
NSN 3130-00-451-2175 is a Bearing Unit,plain, manufactured by Ami Industries, Inc Div Utc Aerospace Systems, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-451-2175 has 1 manufacturer part number on file: 598B20028 (Ami Industries, Inc Div Utc Aerospace Systems).
Key specifications for 598B20028: Surface Treatment Document and Classification: MIL-P-6889 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Mounting Hole Type: ROUND, UNTHREADED; Center to Center Distance Between Mounting Holes Along Width: 1.125 INCHES NOMINAL IN; Alignment Type: RIGID. 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.