PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128258Bearing,sleeve

Curtiss-Wright Controls, Inc. Div Actuation Division · NSN 3120-00-478-9451 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-478-9451 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-478-9451. Primary manufacturer part number: 128258.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 1.8975 INCHES MINIMUM AND 1.8980 INCHES MAXIMUM IN
  • Corner Shape: ROUND ALL CORNERS
  • Body Inside Diameter: 1.2885 INCHES MINIMUM AND 1.2895 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: STEEL COMP 416SE OVERALL
  • Material Document and Classification: AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Precious Material: SILVER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 416SE Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-478-9451, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-478-9451
Primary Part Number128258
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerCurtiss-Wright Controls, Inc. Div Actuation Division
StatusCANCELLED
Body Outside Diameter1.8975 INCHES MINIMUM AND 1.8980 INCHES MAXIMUM IN
Corner ShapeROUND ALL CORNERS
Body Inside Diameter1.2885 INCHES MINIMUM AND 1.2895 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialSTEEL COMP 416SE OVERALL
Material Document and ClassificationAMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Precious MaterialSILVER
Hardness Rating55.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM OVERALL
Surface TreatmentSILVER OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3040-00-309-3845128258 INTERCHANGEABLE
Connecting Link,rigid
Telemechanics Inc
5331-00-589-5935 INTERCHANGEABLE
O-Ring
2520-01-337-41161648237C91 INTERCHANGEABLE
Clutch Assembly,friction
Navistar Intl Corp Truck Br Ohio Plant
Cross-Reference Index
Part NumberManufacturer
ASW128258 Aircraft Supplies (USA)
X4789451 Marc Metal Fabricators Inc (USA)
128258 PRIMARY Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
Related Parts
3040-00-309-3845INTERCHANGEABLE
CONNECTING LINK,RIGID
128258
5331-00-589-5935INTERCHANGEABLE
O-RING
2520-01-337-4116INTERCHANGEABLE
CLUTCH ASSEMBLY,FRICTION
1648237C91

Frequently Asked Questions

What is NSN 3120-00-478-9451?

NSN 3120-00-478-9451 is a Bearing,sleeve, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-478-9451?

NSN 3120-00-478-9451 has 3 cross-referenced part numbers: ASW128258 (Aircraft Supplies), X4789451 (Marc Metal Fabricators Inc), 128258 (Curtiss-Wright Controls, Inc. Div Actuation Division).

What NSN replaces 3120-00-478-9451?

There are 3 known substitutes for 3120-00-478-9451: 3040-00-309-3845, 5331-00-589-5935, 2520-01-337-4116. Verify interchangeability with system specifications before substitution.

What are the specifications of 128258?

Key specifications for 128258: Body Outside Diameter: 1.8975 INCHES MINIMUM AND 1.8980 INCHES MAXIMUM IN; Corner Shape: ROUND ALL CORNERS; Body Inside Diameter: 1.2885 INCHES MINIMUM AND 1.2895 INCHES MAXIMUM IN; Overall Length: 0.8890 INCHES MINIMUM AND 0.8940 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-478-9451 still in active supply?

NSN 3120-00-478-9451 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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