The Bearing,ball,annular, cataloged under National Stock Number 3110-00-421-0509, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corp Div Timken Super Precision. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 3110-00-421-0509 |
| Primary Part Number | 5532MCB274-80 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Outer Ring Width | 0.0927 INCHES MINIMUM AND 0.0937 INCHES MAXIMUM IN |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 0.3360 INCHES MINIMUM AND 0.3362 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.9 |
| Bore Diameter | 0.1562 INCHES NOMINAL IN |
| Material | STEEL COMP 440A BALL A |
| Material | STEEL COMP 440A INNER RACE A |
| Material | STEEL COMP 440A OUTER RACE A |
| Material | PLASTIC PHENOLIC AND COTTON RETAINER |
| Inner Ring Width | 0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM 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 |
|---|---|
| 5532MCB274-80 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| Z468TAX2 PRIMARY | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| Reference | Meaning |
|---|---|
| 131-0338-001 | 5/2 Secondary reference U.S. Government activity |
| 131-0338-002 | 5/2 Secondary reference U.S. Government activity |
| 4304 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-00-421-0509 is a Bearing,ball,annular, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-421-0509 has 2 manufacturer part numbers on file: 5532MCB274-80 (Mpb Corp Div Timken Super Precision), Z468TAX2 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation).
7 possible matches (shared part number, not a government interchangeability claim): 5130-00-447-8265, 6685-00-557-0068, 9330-00-939-7534. Verify interchangeability with system specifications before substitution.
Key specifications for 5532MCB274-80: Retainer Fabrication Method: MACHINED; Outer Ring Width: 0.0927 INCHES MINIMUM AND 0.0937 INCHES MAXIMUM IN; Surface Finish: GROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE. 14 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.