PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

310673Bearing,ball,airframe

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 3110-00-728-4032 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-728-4032 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-728-4032. Primary manufacturer part number: 310673.
Features
  • Bearing,ball,airframe — FSC 3110
  • Lubrication Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
  • Shield Quantity: 2
  • Outer Ring Width: 0.2700 INCHES NOMINAL IN
  • Alignment Type: SELF-ALIGNING
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
  • Self-Alignment Location: INTERNAL
  • Inner Ring Width: 0.2970 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Outer Ring construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-728-4032, is classified within Federal Supply Class 3110 (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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-728-4032
Primary Part Number310673
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Shield Quantity2
Outer Ring Width0.2700 INCHES NOMINAL IN
Alignment TypeSELF-ALIGNING
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
Self-Alignment LocationINTERNAL
Inner Ring Width0.2970 INCHES NOMINAL IN
Load DirectionRADIAL
Lubrication MaterialGREASE
MaterialSTEEL OUTER RING
Overall Outside Diameter0.7774 INCHES NOMINAL IN
Surface TreatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
Style DesignatorSINGLE ROW SELF ALIGNING SINGLE ROW INNER RING EXTENDED BOTH SIDES
MaterialSTEEL CORROSION RESISTING SHIELD
MaterialSTEEL INNER RING
Bore Diameter0.1900 INCHES NOMINAL IN
MaterialSTEEL BALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5815-00-027-4674180067 INTERCHANGEABLE
Bar,code
Telemechanics Inc
4820-00-450-6611310673 INTERCHANGEABLE
Diaphragm,actuator Valve,special
Honeywell Inc Process Controls Div
5365-00-536-3844180164 INTERCHANGEABLE
Bushing,valve Stem
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
5355-00-801-4373200030-01 INTERCHANGEABLE
Knob
Sigma Tek, Inc.
5310-01-713-9554180067 INTERCHANGEABLE
Washer,spring Tension
Mubea, Inc. Div Transmission Springs/disc Springs
Cross-Reference Index
Part NumberManufacturer
310672 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
310673 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
180067 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5815-00-027-4674INTERCHANGEABLE
BAR,CODE
180067
4820-00-450-6611INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
310673
5365-00-536-3844INTERCHANGEABLE
BUSHING,VALVE STEM
180164
5355-00-801-4373INTERCHANGEABLE
KNOB
200030-01
5310-01-713-9554INTERCHANGEABLE
WASHER,SPRING TENSION
180067

Frequently Asked Questions

What is NSN 3110-00-728-4032?

NSN 3110-00-728-4032 is a Bearing,ball,airframe, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-728-4032?

NSN 3110-00-728-4032 has 3 cross-referenced part numbers: 310672 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 310673 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 180067 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 3110-00-728-4032?

There are 5 known substitutes for 3110-00-728-4032: 5815-00-027-4674, 4820-00-450-6611, 5365-00-536-3844 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 310673?

Key specifications for 310673: Lubrication Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE; Shield Quantity: 2; Outer Ring Width: 0.2700 INCHES NOMINAL IN; Special Features: SHIELDS HAVE 5 DEG SELF-ALIGNMENTS IN EITHER DIR.. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-728-4032 still in active supply?

NSN 3110-00-728-4032 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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