NSN 3120-00-554-4949 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-554-4949. Manufacturer of record part number: 509028.
Body Inside Diameter: 0.0635 INCHES MINIMUM AND 0.0645 INCHES MAXIMUM IN
Material: STEEL OVERALL
Spherical Body Diameter: 0.2120 INCHES MINIMUM AND 0.2150 INCHES MAXIMUM IN
Identification
NSN: 3120-00-554-4949
NIIN: 005544949
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
Primary part number: 509028
Manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace
General Description
The Bearing,plain,spherical, cataloged under National Stock Number 3120-00-554-4949, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 7 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3120-00-554-4949
Primary Part Number
509028
Item Name
Bearing,plain,spherical
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
Hamilton Sundstrand Corporation Dba Collins Aerospace
Status
ACTIVE
Surface Finish
32.0 MICROINCHES SPHERICAL SURFACE
Corner Shape
SQUARE INSIDE RIGHT CORNER
Corner Shape
SQUARE INSIDE LEFT CORNER
Style Designator
SOLID
Body Inside Diameter
0.0635 INCHES MINIMUM AND 0.0645 INCHES MAXIMUM IN
Material
STEEL OVERALL
Spherical Body Diameter
0.2120 INCHES MINIMUM AND 0.2150 INCHES MAXIMUM IN
Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
No interchangeability data on file.
Other items in FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288
3120-00-001-1288 · Item name not on file
3120-00-001-1835
3120-00-001-1835 · Item name not on file
3120-00-001-1838
3120-00-001-1838 · Item name not on file
3120-00-001-1928
3120-00-001-1928 · Item name not on file
3120-00-001-1934
3120-00-001-1934 · Item name not on file
3120-00-001-3933
3120-00-001-3933 · Item name not on file
3120-00-001-3937
3120-00-001-3937 · Item name not on file
3120-00-001-3938
3120-00-001-3938 · Item name not on file
Frequently Asked Questions
What is NSN 3120-00-554-4949?
NSN 3120-00-554-4949 is a Bearing,plain,spherical, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-00-554-4949?
NSN 3120-00-554-4949 has 1 manufacturer part number on file: 509028 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
What are the specifications of 509028?
Key specifications for 509028: Surface Finish: 32.0 MICROINCHES SPHERICAL SURFACE; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER; Style Designator: SOLID. 7 specifications are documented in the U.S. Government catalog.
Is NSN 3120-00-554-4949 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.