PartsTable TECHNICAL DATA SHEET
NSN 3120-01-581-2945Government record, cited

Bearing, Sleeve3120-01-581-2945

NSN 3120-01-581-2945 · NIIN 015812945 · Part number SMC-MLD-BP-1-5OB
Spiral Metals Corporation of Baton Rouge Dba Spiral Metals Corp of Baton Rouge Div Spiral Metals Corp of Baton · FSC 3120 — Bearings, Plain, Unmounted · FSG 31 — Bearings · CAGE 53146
Government record, cited
NSN 3120-01-581-2945 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-581-2945. Manufacturer of record part number: SMC-MLD-BP-1-5OB.
Also searched as  3120-01-581-2945 · 3120015812945 · NIIN 015812945 · 01-581-2945 · FSC 3120 Bearings, Plain, Unmounted · CAGE 53146 · SMC-MLD-BP-1-5OB · 512-7585545 ITEM NO. 4/SMC-MLD
Nearby stock numbers  ·
Features
  • Bearing,sleeve — FSC 3120
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES, INTERNAL FLANGE AT BOTH ENDS
  • Material: COPPER ALLOY OVERALL
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Spiral Metals Corporation of Baton Rouge Dba Spiral Metals Corp of Baton Rouge Div Spiral Metals Corp of Baton
Identification
  • NSN: 3120-01-581-2945
  • NIIN: 015812945
  • FSC: 3120 — Bearings, Plain, Unmounted
  • FSG: 31 — Bearings
  • Primary part number: SMC-MLD-BP-1-5OB
  • Manufacturer: Spiral Metals Corporation of Baton Rouge Dba Spiral Metals Corp of Baton Rouge Div Spiral Metals Corp of Baton
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-581-2945, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Spiral Metals Corporation of Baton Rouge Dba Spiral Metals Corp of Baton Rouge Div Spiral Metals Corp of Baton. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-581-2945
Primary Part NumberSMC-MLD-BP-1-5OB
Item NameBearing,sleeve
FSC / FSG3120 / 31 — Bearings, Plain, Unmounted
ManufacturerSpiral Metals Corporation of Baton Rouge Dba Spiral Metals Corp of Baton Rouge Div Spiral Metals Corp of Baton
StatusACTIVE
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES, INTERNAL FLANGE AT BOTH ENDS
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
512-7585545 ITEM NO. 4/SMC-MLD Naval Sea Systems Command (USA)
SMC-MLD-BP-1-5OB PRIMARY Spiral Metals Corporation of Baton Rouge Dba Spiral Metals Corp of Baton Rouge Div Spiral Metals Corp of Baton (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 3120-01-581-2945?

NSN 3120-01-581-2945 is a Bearing,sleeve, manufactured by Spiral Metals Corporation of Baton Rouge Dba Spiral Metals Corp of Baton Rouge Div Spiral Metals Corp of Baton, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.

What part numbers are listed for NSN 3120-01-581-2945?

NSN 3120-01-581-2945 has 2 manufacturer part numbers on file: 512-7585545 ITEM NO. 4/SMC-MLD (Naval Sea Systems Command), SMC-MLD-BP-1-5OB (Spiral Metals Corporation of Baton Rouge Dba Spiral Metals Corp of Baton Rouge Div Spiral Metals Corp of Baton).

What are the specifications of SMC-MLD-BP-1-5OB?

Key specifications for SMC-MLD-BP-1-5OB: Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES, INTERNAL FLANGE AT BOTH ENDS; Special Features: OILITE BRONZE BUSHING; Part Name Assigned by Controlling Agency: OILITE BUSHING; End Item Identification: DAMPER, VENTILATION, MDL-100, 20X12 INCH RH304S 1/8 INCH IN. 2 specifications are documented in the U.S. Government catalog.

Is NSN 3120-01-581-2945 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.
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