PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-816538Bearing,sleeve

Leeds and Northrup Co a Unit of General Signal Corp · NSN 3120-01-197-5570 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-197-5570 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-197-5570. Primary manufacturer part number: D-816538.
Features
  • Bearing,sleeve — FSC 3120
  • Body Inside Diameter: 0.2500 INCHES MINIMUM AND 0.2820 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.2960 INCHES MINIMUM AND 0.3280 INCHES MAXIMUM IN
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Style Designator: SOLID, EXTERNAL FLANGES BOTH ENDS
  • Criticality Code Justification: ZZZY
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • Right Flange Width: 0.1090 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-197-5570, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Leeds and Northrup Co a Unit of General Signal Corp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-197-5570
Primary Part NumberD-816538
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerLeeds and Northrup Co a Unit of General Signal Corp
StatusACTIVE
Body Inside Diameter0.2500 INCHES MINIMUM AND 0.2820 INCHES MAXIMUM IN
Body Outside Diameter0.2960 INCHES MINIMUM AND 0.3280 INCHES MAXIMUM IN
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Style DesignatorSOLID, EXTERNAL FLANGES BOTH ENDS
Criticality Code JustificationZZZY
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Right Flange Width0.1090 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
Right Flange Outside Diameter0.6090 INCHES MINIMUM AND 0.6410 INCHES MAXIMUM IN
Left Flange Width0.1090 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
Left Flange Outside Diameter0.6090 INCHES MINIMUM AND 0.6410 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4320-01-197-2719 INTERCHANGEABLE
Diaphragm,special
3110-01-197-2791 INTERCHANGEABLE
Ball,bearing
5330-01-197-5562 INTERCHANGEABLE
Packing,preformed
3110-01-197-5569G-1012-K INTERCHANGEABLE
Ball,bearing
Waltron Bull & Roberts, Llc
5315-01-197-5657 INTERCHANGEABLE
Pin,straight,headless
4470-01-217-1211 INTERCHANGEABLE
Diaphragm Support
Cross-Reference Index
Part NumberManufacturer
D-816538 Leeds and Northrup Co a Unit of General Signal Corp (USA)
A-236786 PIECE 67 Leeds and Northrup Co a Unit of General Signal Corp (USA)
D-N816538 Lutz-Jesco America Corp (USA)
A-815930PC67 Leeds and Northrup Co a Unit of General Signal Corp (USA)
D-N816538 Leeds and Northrup Co a Unit of General Signal Corp (USA)
A-236786 Leeds and Northrup Co a Unit of General Signal Corp (USA)
Related Parts
4320-01-197-2719INTERCHANGEABLE
DIAPHRAGM,SPECIAL
3110-01-197-2791INTERCHANGEABLE
BALL,BEARING
5330-01-197-5562INTERCHANGEABLE
PACKING,PREFORMED
3110-01-197-5569INTERCHANGEABLE
BALL,BEARING
G-1012-K
5315-01-197-5657INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
4470-01-217-1211INTERCHANGEABLE
DIAPHRAGM SUPPORT

Frequently Asked Questions

What is NSN 3120-01-197-5570?

NSN 3120-01-197-5570 is a Bearing,sleeve, manufactured by Leeds and Northrup Co a Unit of General Signal Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-197-5570?

NSN 3120-01-197-5570 has 6 cross-referenced part numbers: D-816538 (Leeds and Northrup Co a Unit of General Signal Corp), A-236786 PIECE 67 (Leeds and Northrup Co a Unit of General Signal Corp), D-N816538 (Lutz-Jesco America Corp), A-815930PC67 (Leeds and Northrup Co a Unit of General Signal Corp), D-N816538 (Leeds and Northrup Co a Unit of General Signal Corp) and 1 more.

What NSN replaces 3120-01-197-5570?

There are 6 known substitutes for 3120-01-197-5570: 4320-01-197-2719, 3110-01-197-2791, 5330-01-197-5562 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D-816538?

Key specifications for D-816538: Overall Length: 0.7340 INCHES MINIMUM AND 0.7660 INCHES MAXIMUM IN; Body Inside Diameter: 0.2500 INCHES MINIMUM AND 0.2820 INCHES MAXIMUM IN; Body Outside Diameter: 0.2960 INCHES MINIMUM AND 0.3280 INCHES MAXIMUM IN; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 12 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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