PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27391Bearing,roller,cylindrical

Skf Usa Inc. · NSN 3110-00-702-1556 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-702-1556 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-702-1556. Primary manufacturer part number: 27391.
Features
  • Bearing,roller,cylindrical — FSC 3110
  • Surface Finish: GROUND
  • Material: STEEL COMP E52100 INNER RING
  • Material: STEEL COMP E52100 OUTER RING
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
  • Material: COPPER ALLOY RETAINER
  • Style Designator: SINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE INNER RING
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Inner Ring construction
General Description

The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-00-702-1556, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Skf Usa Inc.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-702-1556
Primary Part Number27391
Item NameBearing,roller,cylindrical
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSkf Usa Inc.
StatusACTIVE
Surface FinishGROUND
MaterialSTEEL COMP E52100 INNER RING
MaterialSTEEL COMP E52100 OUTER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
MaterialCOPPER ALLOY RETAINER
Style DesignatorSINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
MaterialSTEEL COMP E52100 ROLLER
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE ROLLER
Locating FeatureONE DIRECTION
Internal Clearance0.0020 INCHES MINIMUM RADIAL AND 0.0030 INCHES MAXIMUM RADIAL IN
Overall Outside Diameter2.8341 INCHES MINIMUM AND 2.8346 INCHES MAXIMUM IN
Bore ShapeSTRAIGHT
Retainer Fabrication MethodMACHINED
Bore Diameter1.9675 INCHES MINIMUM AND 1.9680 INCHES MAXIMUM IN
Standard Tolerance DesignationRBEC NO.1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5360-00-003-393727391 INTERCHANGEABLE
Spring,helical,compression
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
3020-00-541-741827391 INTERCHANGEABLE
Sprocket Wheel
L3harris Technologies, Inc.
4820-00-776-68865173A-4TB-350 INTERCHANGEABLE
Valve,safety Relief
Circor Aerospace, Inc. Dba Circor Aerospace Inc
5935-00-801-20582739-1 INTERCHANGEABLE
Connector,receptacle,electrical
Microwave Devices Inc
5910-00-869-63732739-1 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5325-01-191-615427391 INTERCHANGEABLE
Insert,screw Thread
Moog Inc. Dba Ampac-Isp Corp
4820-01-248-999927391 INTERCHANGEABLE
Valve,gate
Crane Co Div Valve Div
6160-01-600-075882026 INTERCHANGEABLE
Retainer,battery
R.g. Enterprises (u.s.a.), Inc. Dba Rg Enterprises Inc
Cross-Reference Index
Part NumberManufacturer
RJB010-24 Mpb Corporation Dba Mpb Corp (USA)
27391 Hamilton Sundstrand Corporation (USA)
27391 PRIMARY Skf Usa Inc. (USA)
MR1910-G Skf Usa Inc. (USA)
456593 Skf Usa Inc. (USA)
27391 PRIMARY Skf Usa Inc. (USA)
27391 PRIMARY Mpb Corporation Dba Mpb Corp (USA)
Related Parts
5360-00-003-3937INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
27391
3020-00-541-7418INTERCHANGEABLE
SPROCKET WHEEL
27391
4820-00-776-6886INTERCHANGEABLE
VALVE,SAFETY RELIEF
5173A-4TB-350
5935-00-801-2058INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2739-1
5910-00-869-6373INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
2739-1
5325-01-191-6154INTERCHANGEABLE
INSERT,SCREW THREAD
27391
4820-01-248-9999INTERCHANGEABLE
VALVE,GATE
27391
6160-01-600-0758INTERCHANGEABLE
RETAINER,BATTERY
82026

Frequently Asked Questions

What is NSN 3110-00-702-1556?

NSN 3110-00-702-1556 is a Bearing,roller,cylindrical, manufactured by Skf Usa Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-702-1556?

NSN 3110-00-702-1556 has 7 cross-referenced part numbers: RJB010-24 (Mpb Corporation Dba Mpb Corp), 27391 (Hamilton Sundstrand Corporation), 27391 (Skf Usa Inc.), MR1910-G (Skf Usa Inc.), 456593 (Skf Usa Inc.) and 2 more.

What NSN replaces 3110-00-702-1556?

There are 8 known substitutes for 3110-00-702-1556: 5360-00-003-3937, 3020-00-541-7418, 4820-00-776-6886 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27391?

Key specifications for 27391: Overall Width: 0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN; Surface Finish: GROUND; Material: STEEL COMP E52100 INNER RING; Material: STEEL COMP E52100 OUTER RING. 17 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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