The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-084-1479, 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 24 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 3110-01-084-1479 |
| Primary Part Number | MS27648-25 |
| 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 | 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Style Designator | SINGLE ROW, EXTERNAL SELF ALIGNING, W/ALIGNING RING |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES BALL |
| Material Document and Classification | AMS 3652 ASSN STD SINGLE MATERIAL RESPONSE SEAL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE INNER RING |
| Overall Outside Diameter | 2.4990 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN |
| Features Provided | ALIGNING RING |
| Load Direction | RADIAL |
| Alignment Type | SELF-ALIGNING |
| Surface Treatment | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR BALLS, GRADE 3 |
| Bore Diameter | 1.5620 INCHES MINIMUM AND 1.5630 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAL |
| Material | STEEL COMP E52100 OR STEEL COMP E51100 BALL |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| Material | STEEL CORROSION RESISTING SNAP RING |
| Self-Alignment Location | EXTERNAL |
| Lubrication Material Document and Classification | MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.4320 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM 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 |
|---|---|
| MS27648-25 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS27648-25 | 3/9 Design control — primary reference U.S. Government activity |
| AS7949 | 5/9 Secondary reference U.S. Government activity |
| AS27648 | 5/9 Secondary reference U.S. Government activity |
| AS7949 | 5/1 Secondary reference Sae International Dba Sae International |
| KP25BSFS464 | 5/9 Secondary reference Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings |
| KP25BSFS464 | 5/9 Secondary reference Timken Co Div the Timken Company |
| AS27648 | 5/1 Secondary reference Sae International Dba Sae International |
| MS27648-25 | 5/9 Secondary reference U.S. Government activity |
NSN 3110-01-084-1479 is a Bearing,ball,airframe, manufactured by Sae International Dba Sae International, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-084-1479 has 1 manufacturer part number on file: MS27648-25 (Sae International Dba Sae International).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-134-7591. Verify interchangeability with system specifications before substitution.
Key specifications for MS27648-25: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN; Style Designator: SINGLE ROW, EXTERNAL SELF ALIGNING, W/ALIGNING RING. 24 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.