PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

35431Coupling,shaft,flexible

Rexnord Industries, Llc Div Couplings Division · NSN 3010-00-537-9741 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-00-537-9741 — this item is cataloged by the U.S. Government under National Stock Number 3010-00-537-9741. Primary manufacturer part number: 35431.
Features
  • Coupling,shaft,flexible — FSC 3010
  • Keyway Depth: 3.7700 INCHES MINIMUM AND 3.7850 INCHES MAXIMUM FIRST END IN
  • Design Type: SPRING WASHER
  • Furnished Items and Quantity: W/BRAKE WHEEL 1
  • Keying Facility Quantity: 1 BOTH ENDS
  • Features Provided: KEYWAY AND EXPOSED COUPLING BOLT TYPE
  • Keyway Depth: 3.3530 INCHES MINIMUM AND 3.3680 INCHES MAXIMUM SECOND END IN
  • Outside Diameter: 15.000 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-537-9741, 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 Div Couplings Division. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3010-00-537-9741
Primary Part Number35431
Item NameCoupling,shaft,flexible
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerRexnord Industries, Llc Div Couplings Division
StatusACTIVE
Keyway Depth3.7700 INCHES MINIMUM AND 3.7850 INCHES MAXIMUM FIRST END IN
Design TypeSPRING WASHER
Furnished Items and QuantityW/BRAKE WHEEL 1
Keying Facility Quantity1 BOTH ENDS
Features ProvidedKEYWAY AND EXPOSED COUPLING BOLT TYPE
Keyway Depth3.3530 INCHES MINIMUM AND 3.3680 INCHES MAXIMUM SECOND END IN
Outside Diameter15.000 INCHES NOMINAL IN
Keying Facility TypeKEYWAY BOTH ENDS
Bore Diameter3.3405 INCHES MINIMUM AND 3.3415 INCHES MAXIMUM FIRST END IN
Securing MethodKEY BOTH ENDS
Keyway Width0.998 INCHES MINIMUM AND 1.000 INCHES MAXIMUM FIRST END IN
Keyway Width0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM SECOND END IN
Bore Diameter2.9935 INCHES MINIMUM AND 2.9940 INCHES MAXIMUM SECOND END IN
Bore ShapeSTRAIGHT BOTH ENDS
Bore Length5.0000 INCHES NOMINAL BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5325-00-448-675135431 INTERCHANGEABLE
Lock Spring,turnlock Fastener
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
2530-01-214-323335431 INTERCHANGEABLE
Camshaft,actuating,brake Shoe
Dana Commercial Vehicle Products, Llc
Cross-Reference Index
Part NumberManufacturer
35431 PRIMARY Rexnord Industries, Llc Div Couplings Division (USA)
1999030-2 Honeywell Limited Dba Honeywell Aerospace Toronto Div Aerospace-Toronto (CAN)
N0550SER50 Rexnord Industries, Llc Div Couplings Division (USA)
Related Parts
5325-00-448-6751INTERCHANGEABLE
LOCK SPRING,TURNLOCK FASTENER
35431
2530-01-214-3233INTERCHANGEABLE
CAMSHAFT,ACTUATING,BRAKE SHOE
35431

Frequently Asked Questions

What is NSN 3010-00-537-9741?

NSN 3010-00-537-9741 is a Coupling,shaft,flexible, manufactured by Rexnord Industries, Llc Div Couplings Division, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-00-537-9741?

NSN 3010-00-537-9741 has 3 cross-referenced part numbers: 35431 (Rexnord Industries, Llc Div Couplings Division), 1999030-2 (Honeywell Limited Dba Honeywell Aerospace Toronto Div Aerospace-Toronto), N0550SER50 (Rexnord Industries, Llc Div Couplings Division).

What NSN replaces 3010-00-537-9741?

There are 2 known substitutes for 3010-00-537-9741: 5325-00-448-6751, 2530-01-214-3233. Verify interchangeability with system specifications before substitution.

What are the specifications of 35431?

Key specifications for 35431: Keyway Depth: 3.7700 INCHES MINIMUM AND 3.7850 INCHES MAXIMUM FIRST END IN; Design Type: SPRING WASHER; Furnished Items and Quantity: W/BRAKE WHEEL 1; Keying Facility Quantity: 1 BOTH ENDS. 16 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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