The Bearing,ball,annular, cataloged under National Stock Number 3110-00-156-4148, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 30 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 17 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-156-4148 |
| Primary Part Number | 186363-5 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.5000 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 32.00 MILLIMETERS NOMINAL MM |
| Bore Shape | STRAIGHT |
| Nondefinitive Spec/std Data | 1 CLASS AND 00 GRADE AND 118 TYPE |
| Load Direction | RADIAL |
| Seal Quantity | 1 |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 12.00 MILLIMETERS NOMINAL MM |
| Material | STEEL OVERALL |
| Lubrication Material Document and Classification | MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.4800 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 |
|---|---|
| 186363-5 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| RB4631-3 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| 201T PRIMARY | Timken Co Div the Timken Company (USA) |
| B20504-61 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| 1575-131 PRIMARY | Sioux Tools Inc (USA) |
| FLB12 PRIMARY | Skf Usa Inc. (USA) |
| 319696-671 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| RD4616-3 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| RB4423-3 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| RD4406-3 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| 201KTC1FS641 PRIMARY | Timken Co Div the Timken Company (USA) |
| 109119-16 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| RD4631-3 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| 273829-137 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 201FS4 PRIMARY | Skf Usa Inc. (USA) |
| RD4423-3 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| RB4406-3 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| 216066-2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 146343-4 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 466479 PRIMARY | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| X344 | 5/9 Secondary reference Cooper Cameron Corp Ajax-Superior Div |
| WC8501X1C | 5/9 Secondary reference General Motors Corp |
| WC8501X1 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| WC8501X1 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| WC8501X1 | 5/9 Secondary reference General Motors Corp |
| B20504-61 | 5/9 Secondary reference U.S. Government activity |
| WC8501 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| FFB171 | 4/1 Identification reference U.S. Government activity |
| B20504-61 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| B78500 | 3/2 Design control — primary reference U.S. Government activity |
| WC8501X1C | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| WC8501 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| 201KT | 5/9 Secondary reference Timken Co Div the Timken Company |
| B78500 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| WC8501X1C | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| X344 | 5/9 Secondary reference Pierce Co Inc the Sub of Avis Industrial Corp |
| WC8501 | 5/9 Secondary reference General Motors Corp |
NSN 3110-00-156-4148 is a Bearing,ball,annular, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-156-4148 has 30 manufacturer part numbers on file: 186363-5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), RB4631-3 (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec), 201T (Timken Co Div the Timken Company), B20504-61 (Honeywell International, Inc Div Aerospace-Tucson), 1575-131 (Sioux Tools Inc) and 25 more.
10 possible matches (shared part number, not a government interchangeability claim): 5365-00-222-8290, 3455-00-222-9220, 5330-00-285-3444. Verify interchangeability with system specifications before substitution.
Key specifications for 186363-5: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.5000 INCHES NOMINAL IN; Internal Fit-Up Designation: STANDARD. 16 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.