The Bearing,ball,annular, cataloged under National Stock Number 3110-00-227-4521, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is New Hampshire Ball Bearings Inc Div Precision Division. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 34 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3110-00-227-4521 |
| Primary Part Number | R-4ZZRA1P25LG20 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | New Hampshire Ball Bearings Inc Div Precision Division |
| Status | CANCELLED |
| Shield Quantity | 2 |
| Bore Shape | STRAIGHT |
| Internal Fit-Up Designation | STANDARD |
| Internal Clearance | 0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Retainer Fabrication Method | PRESSED |
| Load Direction | RADIAL |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Overall Outside Diameter | 0.6250 INCHES NOMINAL IN |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Lubrication Material | GREASE |
| Standard Tolerance Designation | ABEC NO.3 |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| R-4ZZRA1P25LG20 | New Hampshire Ball Bearings Inc Div Precision Division (USA) |
| RS77R4X1C | General Motors Corp Delco Moraine Ndh Div (USA) |
| 11014596-15 | Mettler-Toledo Inc (CAN) |
| SR43MM8 | New Hampshire Ball Bearings Inc Div Hitech Division (USA) |
| XA134FFSTS5A7MILG3278 | Skf Usa Inc. (USA) |
| SS77R4XR3MILG3278 | General Motors Corp (USA) |
| AMS1KDD7ANG25 | Timken Co Div the Timken Company (USA) |
| 850-1004-001 | Emf Partners Llc (USA) |
| S1KDD7 | Timken Co Div the Timken Company (USA) |
| 7SR4HH | Champion Machinery Co (USA) |
| 77R4XR3CJ | General Motors Corp Delco Moraine Ndh Div (USA) |
| SS77R4XR3MILG3278 | General Motors Corp Delco Moraine Ndh Div (USA) |
| MIL-B-81793 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| BE-296 | Grimes Aerospace Company (USA) |
| 4131103-2A1H | Whippany Actuation Systems, Llc (USA) |
| 401-0098 | Continental Electronics Corp (USA) |
| B11-8 | W. M. Berg, Inc. (USA) |
| 713484 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| 11014596-15 | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| S50-625HHP25LY70 | Mpb Corp Div Timken Super Precision (USA) |
NSN 3110-00-227-4521 is a Bearing,ball,annular, manufactured by New Hampshire Ball Bearings Inc Div Precision Division, classified under FSC 3110 (No Item Name Available). Status: cancelled.
NSN 3110-00-227-4521 has 50 cross-referenced part numbers: R-4ZZRA1P25LG20 (New Hampshire Ball Bearings Inc Div Precision Division), RS77R4X1C (General Motors Corp Delco Moraine Ndh Div), 11014596-15 (Mettler-Toledo Inc), SR43MM8 (New Hampshire Ball Bearings Inc Div Hitech Division), XA134FFSTS5A7MILG3278 (Skf Usa Inc.) and 45 more.
There are 12 known substitutes for 3110-00-227-4521: 3110-00-020-9330, 5307-00-040-9890, 5905-00-102-5294 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for R-4ZZRA1P25LG20: Shield Quantity: 2; Bore Shape: STRAIGHT; Internal Fit-Up Designation: STANDARD; Internal Clearance: 0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 3110-00-227-4521 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.