PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6491Key,woodruff

Triumph Engine Control Systems Llc · NSN 5315-00-240-0942 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-240-0942 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-240-0942. Primary manufacturer part number: 6491.
Features
  • Key,woodruff — FSC 5315
  • Key Height: 0.190 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
  • Circle Diameter: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
  • Surface Treatment: PASSIVATE OVERALL
  • Thickness: 0.091 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN
  • Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Style Designator: ROUND BOTTOM RELIEVED ENDS
  • Starting Edge Shape: STRAIGHT
Applications
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Key,woodruff, cataloged under National Stock Number 5315-00-240-0942, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5315-00-240-0942
Primary Part Number6491
Item NameKey,woodruff
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerTriumph Engine Control Systems Llc
StatusACTIVE
Key Height0.190 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
Circle Diameter0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE OVERALL
Thickness0.091 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Style DesignatorROUND BOTTOM RELIEVED ENDS
Starting Edge ShapeSTRAIGHT
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5360-00-074-12766491 INTERCHANGEABLE
Spring,helical,compression
King Engineering Corporation Dba King-Gage Systems
2910-00-200-8136 INTERCHANGEABLE
Pump,fuel,cam Actuated
2920-00-640-7816IGB1240 INTERCHANGEABLE
Cap,ignition Distribution
Prestolite Electric Inc
5210-01-063-33576491 INTERCHANGEABLE
Indicator,dial
Central Tools, Inc.
6220-01-227-00426491 INTERCHANGEABLE
Spotlight
893 Mfg, Llc
5945-01-234-121584000476-001 INTERCHANGEABLE
Solenoid,electrical
Woodward Hrt Inc
6660-01-501-05880872F1 INTERCHANGEABLE
Detector,ice
Campbell Scientific Inc
4920-01-530-02736491 INTERCHANGEABLE
Probe,1x Scope,airc
Fluke Electronics Corp
6625-01-660-76886491 INTERCHANGEABLE
Probe-Lead Assembly,test
Pomona Electronics
Cross-Reference Index
Part NumberManufacturer
6491 PRIMARY Triumph Engine Control Systems Llc (USA)
Related Parts
5360-00-074-1276INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
6491
2910-00-200-8136INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
2920-00-640-7816INTERCHANGEABLE
CAP,IGNITION DISTRIBUTION
IGB1240
5210-01-063-3357INTERCHANGEABLE
INDICATOR,DIAL
6491
6220-01-227-0042INTERCHANGEABLE
SPOTLIGHT
6491
5945-01-234-1215INTERCHANGEABLE
SOLENOID,ELECTRICAL
84000476-001
6660-01-501-0588INTERCHANGEABLE
DETECTOR,ICE
0872F1
4920-01-530-0273INTERCHANGEABLE
PROBE,1X SCOPE,AIRC
6491
6625-01-660-7688INTERCHANGEABLE
PROBE-LEAD ASSEMBLY,TEST
6491

Frequently Asked Questions

What is NSN 5315-00-240-0942?

NSN 5315-00-240-0942 is a Key,woodruff, manufactured by Triumph Engine Control Systems Llc, classified under FSC 5315 (No Item Name Available). Status: active.

What are the part numbers for NSN 5315-00-240-0942?

NSN 5315-00-240-0942 has 1 cross-referenced part number: 6491 (Triumph Engine Control Systems Llc).

What NSN replaces 5315-00-240-0942?

There are 9 known substitutes for 5315-00-240-0942: 5360-00-074-1276, 2910-00-200-8136, 2920-00-640-7816 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6491?

Key specifications for 6491: Key Height: 0.190 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Circle Diameter: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Overall Length: 0.188 INCHES NOMINAL IN; Surface Treatment: PASSIVATE OVERALL. 9 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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