The Roller,bearing, cataloged under National Stock Number 3110-01-021-2556, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-021-2556 |
| Primary Part Number | Q8128 |
| Item Name | Roller,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Aerospace, Inc Dba Torrington Product |
| Status | ACTIVE |
| Rolling Element Diameter | 0.3125 INCHES NOMINAL IN |
| Style Designator | NEEDLE ROLLER, FLAT ENDS |
| Material Document and Classification | AISI 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP E52100 OVERALL |
| 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 |
|---|---|
| Q8128 PRIMARY | Timken Aerospace, Inc Dba Torrington Product (USA) |
| AF220 PRIMARY | Kaydon Corporation Dba Kaydon Corp (USA) |
| N5732 PIECE 46 PRIMARY | Tate Andale, Llc (USA) |
NSN 3110-01-021-2556 is a Roller,bearing, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-021-2556 has 3 manufacturer part numbers on file: Q8128 (Timken Aerospace, Inc Dba Torrington Product), AF220 (Kaydon Corporation Dba Kaydon Corp), N5732 PIECE 46 (Tate Andale, Llc).
Key specifications for Q8128: Rolling Element Diameter: 0.3125 INCHES NOMINAL IN; Style Designator: NEEDLE ROLLER, FLAT ENDS; Material Document and Classification: AISI 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 0.5620 INCHES NOMINAL IN. 4 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.