The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-6734, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 17 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 33 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-155-6734 |
| Primary Part Number | A181-70 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Style Designator | LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 90.00 MILLIMETERS NOMINAL MM |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 50.00 MILLIMETERS NOMINAL MM |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL BALL |
| 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 |
|---|---|
| CAKX1AM | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| A181-70 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
| 41210 PRIMARY | Hyster-Yale Group, Inc. (USA) |
| 50BL02 PRIMARY | Anti-Friction Bearing Mfg Assn Inc the (USA) |
| 150525 PRIMARY | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| HL35G39500-1 PRIMARY | Cincinnati Machine Co (USA) |
| 41210 PRIMARY | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| 210M PRIMARY | Iri Intl Corp (USA) |
| 210A PRIMARY | Skf Usa Inc. (USA) |
| 2795 PRIMARY | Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA) |
| 1B4076 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| M1034 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| 1210 PRIMARY | Hyster-Yale Group, Inc. (USA) |
| 122357-50 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| MT210 PRIMARY | Fag Bearings Corporation (USA) |
| 700539 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| 70516 PRIMARY | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| Reference | Meaning |
|---|---|
| 15021 | 5/9 Secondary reference Paccar Government Group Co Yarrow Bay Office Pk |
| GAA6934C | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| JX448-20B | 5/9 Secondary reference Lucas Western Inc |
| U130 | 5/9 Secondary reference U.S. Government activity |
| 1210 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| RT8100-37 | 5/9 Secondary reference Jaeger Machine Co |
| 827765 | 5/9 Secondary reference Jayell Co |
| 1210 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| 658022 | 5/9 Secondary reference Clark Equipment Co |
| 311322 | 5/9 Secondary reference Vme Americas Inc Sub of Vme Group N V |
| 658022 | 5/2 Secondary reference U.S. Government activity |
| RT8726 | 5/9 Secondary reference Jaeger Machine Co |
| GAA6934B | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 261204000 | 5/9 Secondary reference U.S. Government activity |
| ST278 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| X116 | C/1 Advisory reference — outside the item-of-supply concept Komatsu America Corp. |
| 1210 | 5/9 Secondary reference Marine Engine Specialties Div of Mesco Tectonics Inc |
| B4076 | 5/9 Secondary reference Link-Belt Cranes, L.p., Lllp |
| 1210 | 5/9 Secondary reference U.S. Government activity |
| RT8100-143 | 5/9 Secondary reference Jaeger Machine Co |
NSN 3110-00-155-6734 is a Bearing,ball,annular, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-155-6734 has 17 manufacturer part numbers on file: CAKX1AM (U S Army Tank Automotive Command Amsta-Im-Mm), A181-70 (Dresser Industries Inc Leroi Div), 41210 (Hyster-Yale Group, Inc.), 50BL02 (Anti-Friction Bearing Mfg Assn Inc the), 150525 (Chrysler Realty Company Llc Dba Daimler Chrysler) and 12 more.
7 possible matches (shared part number, not a government interchangeability claim): 3110-00-155-6735, 5133-00-189-9266, 5315-00-221-5976. Verify interchangeability with system specifications before substitution.
Key specifications for A181-70: Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND; Style Designator: LOADING GROOVE, NON-SEPARABLE; Overall Width: 20.0 MILLIMETERS NOMINAL MM. 11 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.