The Cam Follower,needle Bearing, cataloged under National Stock Number 3110-01-274-5737, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Accurate Bushing Company, Inc.. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3110-01-274-5737 |
| Primary Part Number | CR-1/2-B |
| Item Name | Cam Follower,needle Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Accurate Bushing Company, Inc. |
| Status | ACTIVE |
| Outer Ring Width | 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Thread Length | 0.2500 INCHES MINIMUM IN |
| Style Designator | CAM FOLLOWER |
| Overall Outside Diameter | 0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Stud Length | 0.6250 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Stud Diameter | 0.1900 INCHES MINIMUM AND 0.1910 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 |
|---|---|
| CR-1/2-B PRIMARY | Accurate Bushing Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| CF-1/2-B | 3/2 Design control — primary reference U.S. Government activity |
| 3110PL1320150 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| CRB-8-1 | 5/9 Secondary reference Timken Co Div the Timken Company |
| CRB-8-1 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
NSN 3110-01-274-5737 is a Cam Follower,needle Bearing, manufactured by Accurate Bushing Company, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-274-5737 has 1 manufacturer part number on file: CR-1/2-B (Accurate Bushing Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-325-1584. Verify interchangeability with system specifications before substitution.
Key specifications for CR-1/2-B: Outer Ring Width: 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN; Thread Length: 0.2500 INCHES MINIMUM IN; Style Designator: CAM FOLLOWER; Overall Length: 1.0313 INCHES NOMINAL IN. 12 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.