The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-210-9463, 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. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 — Bearings, Antifriction, Unmounted (FSG 31) |
| Manufacturers | Mpb Corp Div Timken Super Precision (CAGE 40920); Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003) |
| Parameter | Value |
|---|---|
| NSN | 3110-01-210-9463 |
| Primary Part Number | 639AS65561-13 D-A |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| 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 |
|---|---|
| 639AS65561-13 D-A PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| 639AS6561 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 639AS6561-13 D-A | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| SR40415B30-13 D-A | 5/9 Secondary reference U.S. Government activity |
| 639AS6522-13 D-A | 5/9 Secondary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| SR40405B311A-13 D-A | 5/9 Secondary reference U.S. Government activity |
| E998-808-13 D-A | 5/9 Secondary reference Mpb Corp Div Timken Super Precision |
| E998-804-13 D-A | 5/9 Secondary reference Mpb Corp Div Timken Super Precision |
NSN 3110-01-210-9463 is a Bearing,ball,duplex, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-210-9463 has 3 manufacturer part numbers on file: 639AS65561-13 D-A (Mpb Corp Div Timken Super Precision), 639AS6561 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 639AS6561-13 D-A (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-211-7521. Verify interchangeability with system specifications before substitution.
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.