The Bearing Unit,ball, cataloged under National Stock Number 3130-00-159-1449, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Hoffman/new Yorker, Inc.. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-00-159-1449 |
| Primary Part Number | SM55-37-16 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Hoffman/new Yorker, Inc. |
| Status | ACTIVE |
| Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Lubrication Fitting Type | HYDRAULIC |
| Assembly Overall Length | 5.0000 INCHES NOMINAL IN |
| Housing Height | 8.3750 INCHES NOMINAL IN |
| Internal Fit-Up Designation | LOOSE |
| Mounting Hole Type | SLOTTED |
| Rotating Element Locking Method | DIRECT |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 6.3750 INCHES NOMINAL IN |
| Housing Width | 8.6250 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 1 |
| Shaft End Type | OPEN |
| Bore Diameter | 3.4375 INCHES NOMINAL IN |
| Material | IRON CAST HOUSING |
| Height From Bottom of Base to Bore Centerline | 4.3750 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 90.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL |
| Mounting Slot Width | 0.6875 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 |
|---|---|
| SM55-37-16 PRIMARY | Hoffman/new Yorker, Inc. (USA) |
| S55M55 PRIMARY | Hoffman/new Yorker, Inc. (USA) |
| 515106 PRIMARY | Hoffman/new Yorker, Inc. (USA) |
| NAVYX1519APC2 PRIMARY | Hoffman/new Yorker, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SM55-37-16 | 5/9 Secondary reference Stephens-Adamson Inc a Sub of Allis-Chalmers Corp |
| SM553 7-16 | 5/9 Secondary reference Stephens-Adamson Inc a Sub of Allis-Chalmers Corp |
| S55M55 | 5/9 Secondary reference Stephens-Adamson Inc a Sub of Allis-Chalmers Corp |
NSN 3130-00-159-1449 is a Bearing Unit,ball, manufactured by Hoffman/new Yorker, Inc., classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-159-1449 has 4 manufacturer part numbers on file: SM55-37-16 (Hoffman/new Yorker, Inc.), S55M55 (Hoffman/new Yorker, Inc.), 515106 (Hoffman/new Yorker, Inc.), NAVYX1519APC2 (Hoffman/new Yorker, Inc.).
Key specifications for SM55-37-16: Seal Type: CONTACT; Lubrication Material: GREASE; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 5.0000 INCHES NOMINAL IN. 22 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.