PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

388938Bushing,sleeve

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 3120-00-768-3004 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-768-3004 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-768-3004. Primary manufacturer part number: 388938.
Features
  • Bushing,sleeve — FSC 3120
  • Flange Outside Diameter: 2.0000 INCHES MINIMUM AND 2.0300 INCHES MAXIMUM IN
  • Body Outside Diameter: 1.6430 INCHES MINIMUM AND 1.6570 INCHES MAXIMUM IN
  • Lubricant Accommodation Style: GROOVED CIRCULAR
  • Body Inside Diameter: 1.4580 INCHES MINIMUM AND 1.4600 INCHES MAXIMUM IN
  • Flange Width: 0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN
  • Surface Groove Location and Quantity: 1 EXTERNAL
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Applications
  • Applications requiring Steel Comp 8740 Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-768-3004, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-768-3004
Primary Part Number388938
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Flange Outside Diameter2.0000 INCHES MINIMUM AND 2.0300 INCHES MAXIMUM IN
Body Outside Diameter1.6430 INCHES MINIMUM AND 1.6570 INCHES MAXIMUM IN
Lubricant Accommodation StyleGROOVED CIRCULAR
Body Inside Diameter1.4580 INCHES MINIMUM AND 1.4600 INCHES MAXIMUM IN
Flange Width0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN
Surface Groove Location and Quantity1 EXTERNAL
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Surface TreatmentCADMIUM OVERALL
Criticality Code JustificationFEAT
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Surface Finish125.0 MICROINCHES INTERMEDIATE LAYER
Corner ShapeCHAMFERED OUTSIDE RIGHT CORNER
Corner ShapeSQUARE INSIDE RIGHT CORNER
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
MaterialSTEEL COMP 8740 OVERALL
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2590-00-078-2994 INTERCHANGEABLE
Cap,filler Opening
Cross-Reference Index
Part NumberManufacturer
388938 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
388938 Tube Processing Corp Milturn Div (USA)
388938 Rtx Corporation Div Pratt & Whitney (USA)
388938 American Aircraft Parts Mfg. Co. (USA)
388938 American Tool and Machine Corp
Related Parts
2590-00-078-2994INTERCHANGEABLE
CAP,FILLER OPENING

Frequently Asked Questions

What is NSN 3120-00-768-3004?

NSN 3120-00-768-3004 is a Bushing,sleeve, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-768-3004?

NSN 3120-00-768-3004 has 5 cross-referenced part numbers: 388938 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 388938 (Tube Processing Corp Milturn Div), 388938 (Rtx Corporation Div Pratt & Whitney), 388938 (American Aircraft Parts Mfg. Co.), 388938 (American Tool and Machine Corp).

What NSN replaces 3120-00-768-3004?

There is 1 known substitute for 3120-00-768-3004: 2590-00-078-2994. Verify interchangeability with system specifications before substitution.

What are the specifications of 388938?

Key specifications for 388938: Flange Outside Diameter: 2.0000 INCHES MINIMUM AND 2.0300 INCHES MAXIMUM IN; Body Outside Diameter: 1.6430 INCHES MINIMUM AND 1.6570 INCHES MAXIMUM IN; Lubricant Accommodation Style: GROOVED CIRCULAR; Body Inside Diameter: 1.4580 INCHES MINIMUM AND 1.4600 INCHES MAXIMUM IN. 20 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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