PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1070T20 2 1/2 IN. BORECoupling,shaft,flexible

Rexnord Industries Llc · NSN 3010-01-340-1599 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-01-340-1599 — this item is cataloged by the U.S. Government under National Stock Number 3010-01-340-1599. Primary manufacturer part number: 1070T20 2 1/2 IN. BORE.
Features
  • Coupling,shaft,flexible — FSC 3010
  • Outside Diameter: 6.380 INCHES NOMINAL IN
  • Bore Shape: STRAIGHT BOTH ENDS
  • Bore Diameter: 2.5000 INCHES NOMINAL BOTH ENDS IN
  • Keyway Width: 0.625 INCHES NOMINAL BOTH ENDS IN
  • Keyway Depth: 0.3120 INCHES NOMINAL BOTH ENDS IN
  • Features Provided: KEYWAY AND EXPOSED COUPLING BOLT TYPE AND STANDARD GRID SPRING
  • Keying Facility Quantity: 1 BOTH ENDS
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-340-1599, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Rexnord Industries Llc. Government technical data includes 10 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3010-01-340-1599
Primary Part Number1070T20 2 1/2 IN. BORE
Item NameCoupling,shaft,flexible
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerRexnord Industries Llc
StatusACTIVE
Outside Diameter6.380 INCHES NOMINAL IN
Bore ShapeSTRAIGHT BOTH ENDS
Bore Diameter2.5000 INCHES NOMINAL BOTH ENDS IN
Keyway Width0.625 INCHES NOMINAL BOTH ENDS IN
Keyway Depth0.3120 INCHES NOMINAL BOTH ENDS IN
Features ProvidedKEYWAY AND EXPOSED COUPLING BOLT TYPE AND STANDARD GRID SPRING
Keying Facility Quantity1 BOTH ENDS
Bore Length3.0000 INCHES NOMINAL BOTH ENDS IN
Keying Facility TypeKEYWAY BOTH ENDS
Design TypeGRID SPRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3010-00-239-34411040T20RSB INTERCHANGEABLE
Coupling,shaft,flexible
Rexnord Industries Llc
5330-00-997-0114247668 INTERCHANGEABLE
Seal
Rexnord Industries Llc
3010-01-203-87721040T10 1-5/8IN.BORE INTERCHANGEABLE
Coupling,shaft,flexible
Rexnord Industries Llc
3010-01-205-2170777509 INTERCHANGEABLE
Coupling,shaft,rigid
Rexnord Industries Llc
3010-01-215-88511193352 INTERCHANGEABLE
Gridmember,coupling
Rexnord Industries Llc
3010-01-218-3031246657 INTERCHANGEABLE
Hub,coupling,flexible
Rexnord Industries Llc
3010-01-232-89621090T10-3 INTERCHANGEABLE
Hub,coupling,flexible
Rexnord Industries Llc
3010-01-258-5157006294 INTERCHANGEABLE
Hub,coupling,flexible
Reliance Electric Company Dba Reliance & Dodge Brands
3010-01-275-43141193360 INTERCHANGEABLE
Gridmember,coupling
Rexnord Industries Llc
3010-01-277-76520762813 INTERCHANGEABLE
Gridmember,coupling
Rexnord Industries Llc
Cross-Reference Index
Part NumberManufacturer
1070T20 2 1/2 IN. BORE PRIMARY Rexnord Industries Llc (USA)
T201070T Rexnord Industries Llc (USA)
505950 Rexnord Industries Llc (USA)
Related Parts
3010-00-239-3441INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
1040T20RSB
5330-00-997-0114INTERCHANGEABLE
SEAL
247668
3010-01-203-8772INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
1040T10 1-5/8IN.BORE
3010-01-205-2170INTERCHANGEABLE
COUPLING,SHAFT,RIGID
777509
3010-01-215-8851INTERCHANGEABLE
GRIDMEMBER,COUPLING
1193352
3010-01-218-3031INTERCHANGEABLE
HUB,COUPLING,FLEXIBLE
246657
3010-01-232-8962INTERCHANGEABLE
HUB,COUPLING,FLEXIBLE
1090T10-3
3010-01-258-5157INTERCHANGEABLE
HUB,COUPLING,FLEXIBLE
006294
3010-01-275-4314INTERCHANGEABLE
GRIDMEMBER,COUPLING
1193360
3010-01-277-7652INTERCHANGEABLE
GRIDMEMBER,COUPLING
0762813
3010-01-285-9643INTERCHANGEABLE
HUB,COUPLING,FLEXIBLE
246663
3010-01-340-1600INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
1100T10 4IN.BORE

Frequently Asked Questions

What is NSN 3010-01-340-1599?

NSN 3010-01-340-1599 is a Coupling,shaft,flexible, manufactured by Rexnord Industries Llc, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-01-340-1599?

NSN 3010-01-340-1599 has 3 cross-referenced part numbers: 1070T20 2 1/2 IN. BORE (Rexnord Industries Llc), T201070T (Rexnord Industries Llc), 505950 (Rexnord Industries Llc).

What NSN replaces 3010-01-340-1599?

There are 12 known substitutes for 3010-01-340-1599: 3010-00-239-3441, 5330-00-997-0114, 3010-01-203-8772 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1070T20 2 1/2 IN. BORE?

Key specifications for 1070T20 2 1/2 IN. BORE: Outside Diameter: 6.380 INCHES NOMINAL IN; Bore Shape: STRAIGHT BOTH ENDS; Bore Diameter: 2.5000 INCHES NOMINAL BOTH ENDS IN; Keyway Width: 0.625 INCHES NOMINAL BOTH ENDS IN. 11 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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