The Roller,bearing, cataloged under National Stock Number 3110-01-280-6891, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-280-6891 |
| Primary Part Number | SB2617-101 |
| Item Name | Roller,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Rolling Element Diameter | 0.5249 INCHES MINIMUM AND 0.5251 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-13924,CLASS 1,GRADE A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Criticality Code Justification | FEAT |
| Style Designator | CYLINDRICAL ROLLER, FLAT ENDS |
| Surface Treatment | OXIDE 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 | F |
| Part Number | Manufacturer |
|---|---|
| SB2617-101 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| M-23787-1 | 5/1 Secondary reference U.S. Government activity |
| 2039-0525H0330-700-10 | 5/9 Secondary reference Regal Beloit America, Inc. Dba Rollway Bearing |
| Y-2787 | 5/1 Secondary reference Regal Beloit America, Inc. Dba Rollway Bearing |
| SB2617-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-280-6891 is a Roller,bearing, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-280-6891 has 1 manufacturer part number on file: SB2617-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for SB2617-101: Rolling Element Diameter: 0.5249 INCHES MINIMUM AND 0.5251 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-13924,CLASS 1,GRADE A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Criticality Code Justification: FEAT; Style Designator: CYLINDRICAL ROLLER, FLAT ENDS. 6 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.