The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-134-7591, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-134-7591 |
| Primary Part Number | MS27648-37G |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.3750 INCHES NOMINAL IN |
| Style Designator | SINGLE ROW, EXTERNAL SELF ALIGNING, W/ALIGNING RING |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 3.2500 INCHES NOMINAL IN |
| Load Direction | RADIAL |
| Alignment Type | SELF-ALIGNING |
| Seal Quantity | 2 |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS |
| Bore Diameter | 2.3130 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAL |
| Material | STEEL COMP E52100 OVERALL |
| Self-Alignment Location | EXTERNAL |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.4375 INCHES NOMINAL 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 |
|---|---|
| MS27648-37G PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| KP37BS | 5/9 Secondary reference Timken Co Div the Timken Company |
| KP37BSFS428 | 5/1 Secondary reference Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings |
| AS27648 | 3/1 Design control — primary reference Sae International Dba Sae International |
| KP37BSFS428 | 5/9 Secondary reference Timken Co Div the Timken Company |
| AS27648 | 5/9 Secondary reference U.S. Government activity |
| BACB10A240 | 5/2 Secondary reference U.S. Government activity |
| MS27648-37G | 5/9 Secondary reference U.S. Government activity |
NSN 3110-01-134-7591 is a Bearing,ball,airframe, manufactured by Sae International Dba Sae International, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-134-7591 has 1 manufacturer part number on file: MS27648-37G (Sae International Dba Sae International).
Key specifications for MS27648-37G: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.3750 INCHES NOMINAL IN; Style Designator: SINGLE ROW, EXTERNAL SELF ALIGNING, W/ALIGNING RING. 16 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.