The Bearing,ball,annular, cataloged under National Stock Number 3110-00-129-6525, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-129-6525 |
| Primary Part Number | 6311ZZW1B |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Lubrication Material | GREASE |
| Internal Clearance | 0.0007 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 4.7242 INCHES MINIMUM AND 4.7244 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Nondefinitive Spec/std Data | 111 TYPE |
| Load Direction | RADIAL |
| Bore Diameter | 2.1652 INCHES MINIMUM AND 2.1654 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Lubrication Material Document and Classification | MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6311ZZW1B PRIMARY | Skf Usa Inc. (USA) |
| 311SFFNT3 PRIMARY | Skf Usa Inc. (USA) |
| 77311 4ES100 PRIMARY | Hoover Group Inc Ball and Roller Div (USA) |
| 311SZZNT3 | Skf Usa Inc. (USA) |
| 311SFFNTS PRIMARY | Skf Usa Inc. (USA) |
| 77311-4ES100 | Hoover Group Inc Ball and Roller Div (USA) |
| Reference | Meaning |
|---|---|
| MILB17931 | 4/1 Identification reference U.S. Government activity |
| 385P525G01 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| S385P525G01 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 77611S7077V4 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
NSN 3110-00-129-6525 is a Bearing,ball,annular, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-129-6525 has 6 manufacturer part numbers on file: 6311ZZW1B (Skf Usa Inc.), 311SFFNT3 (Skf Usa Inc.), 77311 4ES100 (Hoover Group Inc Ball and Roller Div), 311SZZNT3 (Skf Usa Inc.), 311SFFNTS (Skf Usa Inc.) and 1 more.
Key specifications for 6311ZZW1B: Lubrication Material: GREASE; Internal Clearance: 0.0007 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND. 13 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.
NSN 3110-00-129-6525 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.