The Bearing,ball,annular, cataloged under National Stock Number 3110-01-129-9891, 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 26 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-129-9891 |
| Primary Part Number | SFRW156SSW3G-33 |
| 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 | GREASE |
| Outer Ring Width | 0.1250 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Flange Outside Diameter | 0.3590 INCHES NOMINAL IN |
| Surface Finish | GROUND |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | AISI 440A ASSN STD SINGLE MATERIAL RESPONSE INNER RING A |
| Material Document and Classification | AISI 440A ASSN STD SINGLE MATERIAL RESPONSE BALL A |
| Material Document and Classification | AISI 440A ASSN STD SINGLE MATERIAL RESPONSE OUTER RING A |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE SHIELD |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE RETAINER |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Flange Width | 0.0360 INCHES NOMINAL IN |
| Outer Ring Outside Diameter | 0.3125 INCHES NOMINAL IN |
| Standard Tolerance Designation | ABEC NO.7 |
| Bore Diameter | 0.1875 INCHES NOMINAL IN |
| Material | STEEL COMP 440A BALL A |
| Material | STEEL COMP 440A INNER RING A |
| Material | STEEL COMP 440A OUTER RING A |
| Material | STEEL COMP 302 OR STEEL COMP 305 RETAINER |
| Material | STEEL COMP 304 OR STEEL COMP 303 OR STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 305 SHIELD |
| Lubrication Material Document and Classification | MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.1562 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SFRW156SSW3G-33 | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| Reference | Meaning |
|---|---|
| SFR156PPEE MIL-G-81322 | 3/2 Design control — primary reference U.S. Government activity |
| 144A9547P1 | 7/2 Vendor item drawing reference U.S. Government activity |
| SFRW156SS | 5/1 Secondary reference Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
NSN 3110-01-129-9891 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 3110-01-129-9891 has 1 manufacturer part number on file: SFRW156SSW3G-33 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation).
Key specifications for SFRW156SSW3G-33: Retainer Fabrication Method: PRESSED; Lubrication Material: GREASE; Outer Ring Width: 0.1250 INCHES NOMINAL IN; Internal Fit-Up Designation: STANDARD. 26 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 3110-01-129-9891 has DEMIL Code Q. 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.