The Bearing,ball,annular, cataloged under National Stock Number 3110-00-277-0482, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation. Government technical data includes 16 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3110-00-277-0482 |
| Primary Part Number | SF4SS3ABEC5MILL7870 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Lubrication Material | OIL |
| Outer Ring Width | 0.2260 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Flange Outside Diameter | 0.6925 INCHES NOMINAL IN |
| Surface Finish | GROUND |
| Outer Ring Taper | 0.0680 PER FOOT IN INCHES NOMINAL |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Flange Width | 0.0420 INCHES NOMINAL IN |
| Bore Diameter | 0.2500 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Lubrication Material Document and Classification | MIL-L-7808 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.2510 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 |
|---|---|
| SF4SS3ABEC5MILL7870 PRIMARY | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| Reference | Meaning |
|---|---|
| ES773C3SS5T | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 54495-1 | 5/9 Secondary reference Numax Electronics Inc |
| SSRS77NR4HXR5MILL7870 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| ES773C3SS5T | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
| 54495 | 5/9 Secondary reference Numax Electronics Inc |
NSN 3110-00-277-0482 is a Bearing,ball,annular, manufactured by Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-277-0482 has 1 manufacturer part number on file: SF4SS3ABEC5MILL7870 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 5360-00-919-6623, 4820-01-191-8286, 8465-01-553-7405. Verify interchangeability with system specifications before substitution.
Key specifications for SF4SS3ABEC5MILL7870: Retainer Fabrication Method: PRESSED; Lubrication Material: OIL; Outer Ring Width: 0.2260 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.