The Bearing,ball,annular, cataloged under National Stock Number 3110-00-931-8639, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is W S Darley & Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-931-8639 |
| Primary Part Number | 307SFF |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | W S Darley & Co |
| Status | ACTIVE |
| Lubrication Material Document and Classification | MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE |
| Standard Tolerance Designation | ABEC NO.1 |
| Lubrication Material | GREASE |
| Load Direction | RADIAL |
| Shield Quantity | 2 |
| Bore Shape | STRAIGHT |
| Surface Finish | GROUND |
| Retainer Fabrication Method | PRESSED |
| Internal Fit-Up Designation | STANDARD |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material | STEEL OVERALL |
| Bore Diameter | 35.00 MILLIMETERS NOMINAL MM |
| Overall Outside Diameter | 80.00 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3110-00-931-8639 is a Bearing,ball,annular, manufactured by W S Darley & Co, classified under FSC 3110 (No Item Name Available). Status: active.
NSN 3110-00-931-8639 has 5 cross-referenced part numbers: K82207 (Electric Apparatus Company), M9300-17 (Lincoln Electric Holdings Inc), 151987 (Reliance Electric Industrial Co Master Div), 307SFF (W S Darley & Co), T2557IT35 (Lincoln Electric Holdings Inc).
There is 1 known substitute for 3110-00-931-8639: 3110-00-144-8652. Verify interchangeability with system specifications before substitution.
Key specifications for 307SFF: Overall Width: 21.0 MILLIMETERS NOMINAL MM; Lubrication Material Document and Classification: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE; Standard Tolerance Designation: ABEC NO.1; Lubrication Material: GREASE. 14 total characteristics are documented in the Federal Logistics Information System.