PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0B4Bearing,sleeve

Secs Inc · NSN 3120-00-618-5888 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-618-5888 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-618-5888. Primary manufacturer part number: 0B4.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
  • Material: OIL LUBRICATING LUBRICATION
  • Material: COPPER ALLOY OVERALL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Oil Lubricating Lubrication construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-618-5888, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Secs Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-618-5888
Primary Part Number0B4
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerSecs Inc
StatusCANCELLED
Body Outside Diameter0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
MaterialOIL LUBRICATING LUBRICATION
MaterialCOPPER ALLOY OVERALL
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Corner ShapeSQUARE INSIDE RIGHT CORNER
Flange Width0.0470 INCHES NOMINAL IN
Flange Outside Diameter0.3650 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
Body Inside Diameter0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1730-00-006-3773 INTERCHANGEABLE
Leg,stand
5310-00-012-5366 INTERCHANGEABLE
Nut,plain,slotted,hexagon
3030-00-014-0106 INTERCHANGEABLE
Belt,v
6210-00-079-4660 INTERCHANGEABLE
Fixture,lighting
5330-00-095-6668G-714 INTERCHANGEABLE
Gasket
Rolls-Royce Solutions America Inc
3110-00-114-9614A2434 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
5940-00-155-9665B77 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
5940-00-204-7837B115 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
2910-00-218-2525B77 INTERCHANGEABLE
Valve,throttle
Wildfire Pacific Inc
5910-00-223-3247 INTERCHANGEABLE
Retainer,capacitor
Cross-Reference Index
Part NumberManufacturer
406435-1 Raytheon Company Div Corp (USA)
10011REV1 Waterbury Farrel Div Textron Inc Precision Methods and Machines Opn (USA)
B7-7 Reliance Precision Limited (GBR)
DB115 Allied Devices Corp Dba Absolute Precision Co (USA)
0B4 PRIMARY Secs Inc (USA)
B11-5 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
SM76008-007 Thales Uk Limited Dba Thales Uk Ltd Optronics (GBR)
G71-4 Designatronics Incorporated Div Sterling Instruments Div (USA)
B7-7 W. M. Berg, Inc. (USA)
406435-1 Raytheon Company Dba Raytheon Co (USA)
666096-610 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
21006741-101 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
AGB-A2-4 Nordex, Incorporated Dba Nordex Inc (USA)
AGB-A2-4 Nordex Inc (USA)
Related Parts
1730-00-006-3773INTERCHANGEABLE
LEG,STAND
5310-00-012-5366INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
3030-00-014-0106INTERCHANGEABLE
BELT,V
6210-00-079-4660INTERCHANGEABLE
FIXTURE,LIGHTING
5330-00-095-6668INTERCHANGEABLE
GASKET
G-714
3110-00-114-9614INTERCHANGEABLE
BEARING,BALL,ANNULAR
A2434
5940-00-155-9665INTERCHANGEABLE
TERMINAL,LUG
B77
5940-00-204-7837INTERCHANGEABLE
TERMINAL,LUG
B115
2910-00-218-2525INTERCHANGEABLE
VALVE,THROTTLE
B77
5910-00-223-3247INTERCHANGEABLE
RETAINER,CAPACITOR
5925-00-374-1690INTERCHANGEABLE
THERMAL RELEASE,CIRCUIT BREAKER
B11.5
5925-00-389-6433INTERCHANGEABLE
THERMAL RELEASE,CIRCUIT BREAKER
B77.0

Frequently Asked Questions

What is NSN 3120-00-618-5888?

NSN 3120-00-618-5888 is a Bearing,sleeve, manufactured by Secs Inc, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-618-5888?

NSN 3120-00-618-5888 has 14 cross-referenced part numbers: 406435-1 (Raytheon Company Div Corp), 10011REV1 (Waterbury Farrel Div Textron Inc Precision Methods and Machines Opn), B7-7 (Reliance Precision Limited), DB115 (Allied Devices Corp Dba Absolute Precision Co), 0B4 (Secs Inc) and 9 more.

What NSN replaces 3120-00-618-5888?

There are 12 known substitutes for 3120-00-618-5888: 1730-00-006-3773, 5310-00-012-5366, 3030-00-014-0106 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0B4?

Key specifications for 0B4: Body Outside Diameter: 0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN; Material Document and Classification: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-618-5888 still in active supply?

NSN 3120-00-618-5888 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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