Flange Outside Diameter: 0.4075 INCHES MINIMUM AND 0.5025 INCHES MAXIMUM IN
Body Outside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
Style Designator: SOLID, EXTERNAL FLANGE ONE END
Body Inside Diameter: 0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
Flange Width: 0.0435 INCHES MINIMUM AND 0.0485 INCHES MAXIMUM IN
Material: COPPER ALLOY 841 OVERALL
Identification
NSN: 3120-01-191-3237
NIIN: 011913237
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
General Description
The Bearing,sleeve, cataloged under National Stock Number 3120-01-191-3237, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3120-01-191-3237
Item Name
Bearing,sleeve
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Status
ACTIVE
Corner Shape
SQUARE ALL CORNERS
Flange Outside Diameter
0.4075 INCHES MINIMUM AND 0.5025 INCHES MAXIMUM IN
Body Outside Diameter
0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
Style Designator
SOLID, EXTERNAL FLANGE ONE END
Body Inside Diameter
0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
Flange Width
0.0435 INCHES MINIMUM AND 0.0485 INCHES MAXIMUM IN
Material
COPPER ALLOY 841 OVERALL
Material
OIL LUBRICATING LUBRICATION
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
BSK-9-01425
5/9Secondary reference
Bae Systems Technology Solutions & Services Inc.
BSK-9-01425
3/9Design control — primary reference
Tracor Flight Systems Inc Sub of Tracor Inc
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 3120-01-191-3237?
NSN 3120-01-191-3237 is a Bearing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What are the specifications of 3120-01-191-3237?
Key specifications for 3120-01-191-3237: Corner Shape: SQUARE ALL CORNERS; Flange Outside Diameter: 0.4075 INCHES MINIMUM AND 0.5025 INCHES MAXIMUM IN; Body Outside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END. 8 specifications are documented in the U.S. Government catalog.
Is NSN 3120-01-191-3237 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.