PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6781488Bearing,plain,rod End

Allison Transmission Inc Dba Allison Transmission, Inc · NSN 3120-00-512-5165 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-512-5165 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-512-5165. Primary manufacturer part number: 6781488.
Features
  • Bearing,plain,rod End — FSC 3120
  • Thread Class: 3B
  • Thread Series Designator: UNF
  • Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OUTSIDE DIAMETER SURFACE OF BODY
  • Style Designator: BALL TYPE
  • Hardness Rating: 60.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM INNER MEMBER
  • Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
  • Material: STEEL COMP 410 INTERNAL ROD END BODY
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 410 Internal Rod End Body construction
General Description

The Bearing,plain,rod End, cataloged under National Stock Number 3120-00-512-5165, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-512-5165
Primary Part Number6781488
Item NameBearing,plain,rod End
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAllison Transmission Inc Dba Allison Transmission, Inc
StatusACTIVE
Thread Class3B
Thread Series DesignatorUNF
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OUTSIDE DIAMETER SURFACE OF BODY
Style DesignatorBALL TYPE
Hardness Rating60.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM INNER MEMBER
Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
MaterialSTEEL COMP 410 INTERNAL ROD END BODY
MaterialGREASE LUBRICATION
Surface TreatmentNICKEL AND CHROMIUM INNER MEMBER
Thread Diameter0.312 INCHES NOMINAL IN
Bore Center to Shank End Distance1.4590 INCHES MINIMUM AND 1.4790 INCHES MAXIMUM IN
Thread Quantity Per Inch24
Shank Width Across Wrench Flats0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM IN
Shank Thread Length0.7180 INCHES MINIMUM IN
MaterialSTEEL COMP E52100 INNER MEMBER
Outer Member Outside Diameter0.9280 INCHES MINIMUM AND 0.9380 INCHES MAXIMUM IN
Outer Member Width0.4330 INCHES MAXIMUM IN
Inner Member Width0.5880 INCHES MINIMUM AND 0.5930 INCHES MAXIMUM IN
Inspection Hole Center to End Distance0.3020 INCHES MINIMUM AND 0.3220 INCHES MAXIMUM IN
Shank StyleINTERNALLY THREADED W/BEAD AND WRENCH FLATS AND INSPECTION HOLE
Thread DirectionRIGHT-HAND
Bore Diameter0.2495 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5130-00-496-6320R4-11 INTERCHANGEABLE
Plate,end,motor
Ingersoll Rand Co Athens Plant
5330-01-162-2780R-411 INTERCHANGEABLE
Rubber Strip
Reed Rubber Company
5998-01-440-2881R-411 INTERCHANGEABLE
Circuit Card Assembly
Tabet Manufacturing Company, Inc. Dba Tabet Manufacturing Co Inc
1005-01-482-14746781488 INTERCHANGEABLE
Cover,gunsight
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
R4-11MILG3278 Stephens-Adamson Inc a Sub of Allis-Chalmers Corp (USA)
R4-11 Stephens-Adamson Inc a Sub of Allis-Chalmers Corp (USA)
R4-11 Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co (USA)
6781488 PRIMARY Allison Transmission Inc Dba Allison Transmission, Inc (USA)
F-4CRAD Roller Bearing Company of America, Inc. (USA)
Related Parts
5130-00-496-6320INTERCHANGEABLE
PLATE,END,MOTOR
R4-11
5330-01-162-2780INTERCHANGEABLE
RUBBER STRIP
R-411
5998-01-440-2881INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
R-411
1005-01-482-1474INTERCHANGEABLE
COVER,GUNSIGHT
6781488

Frequently Asked Questions

What is NSN 3120-00-512-5165?

NSN 3120-00-512-5165 is a Bearing,plain,rod End, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-512-5165?

NSN 3120-00-512-5165 has 5 cross-referenced part numbers: R4-11MILG3278 (Stephens-Adamson Inc a Sub of Allis-Chalmers Corp), R4-11 (Stephens-Adamson Inc a Sub of Allis-Chalmers Corp), R4-11 (Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co), 6781488 (Allison Transmission Inc Dba Allison Transmission, Inc), F-4CRAD (Roller Bearing Company of America, Inc.).

What NSN replaces 3120-00-512-5165?

There are 4 known substitutes for 3120-00-512-5165: 5130-00-496-6320, 5330-01-162-2780, 5998-01-440-2881 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6781488?

Key specifications for 6781488: Thread Class: 3B; Thread Series Designator: UNF; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OUTSIDE DIAMETER SURFACE OF BODY; Style Designator: BALL TYPE. 23 total characteristics are documented in the Federal Logistics Information System.

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