Inner Member Width: 1.4950 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
Outer Member Width: 1.9200 INCHES NOMINAL IN
Bore Diameter: 1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
Material: COBALT COMP 6 INNER MEMBER
Material: LUBRICANT DRY FILM LUBRICATION
Material: STEEL COMP XM-12 OUTER RACE MEMBER
Outer Member Outside Diameter: 2.8100 INCHES NOMINAL IN
Identification
NSN: 3120-01-239-0174
NIIN: 012390174
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
General Description
The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-239-0174, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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
3120-01-239-0174
Item Name
Bearing,plain,self-Aligning
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Status
ACTIVE
Inner Member Width
1.4950 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
Outer Member Width
1.9200 INCHES NOMINAL IN
Bore Diameter
1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
Material
COBALT COMP 6 INNER MEMBER
Material
LUBRICANT DRY FILM LUBRICATION
Material
STEEL COMP XM-12 OUTER RACE MEMBER
Outer Member Outside Diameter
2.8100 INCHES NOMINAL IN
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
P22440
3/9Design control — primary reference
Rexnord Industries, Llc Dba Psi Bearings Div Psi Bearings
210C837210-1
7/2Vendor item drawing reference
Northrop Grumman Systems Corporation
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 3120-01-239-0174?
NSN 3120-01-239-0174 is a Bearing,plain,self-Aligning, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What are the specifications of 3120-01-239-0174?
Key specifications for 3120-01-239-0174: Inner Member Width: 1.4950 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Outer Member Width: 1.9200 INCHES NOMINAL IN; Bore Diameter: 1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Material: COBALT COMP 6 INNER MEMBER. 7 specifications are documented in the U.S. Government catalog.
Is NSN 3120-01-239-0174 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.