PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

EH2-6Collar,shaft

Secs Inc · NSN 3040-00-417-2546 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-417-2546 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-417-2546. Primary manufacturer part number: EH2-6.
Features
  • Collar,shaft — FSC 3040
  • Securing Hole Type and Location: THREADED SINGLE HOLE
  • Material Document and Classification: QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
  • Furnished Items and Quantity: 1 SETSCREW
  • Style Designator: PLAIN ROUND
  • Surface Treatment: PASSIVATE
  • Material: STEEL COMP 303
  • Nominal Thread Size: 0.138 INCHES SINGLE HOLE IN
Applications
  • Applications requiring Steel Comp 303 construction
General Description

The Collar,shaft, cataloged under National Stock Number 3040-00-417-2546, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Secs Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN3040-00-417-2546
Primary Part NumberEH2-6
Item NameCollar,shaft
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerSecs Inc
StatusACTIVE
Securing Hole Type and LocationTHREADED SINGLE HOLE
Material Document and ClassificationQQ-S-764, TYPE 303, COND A-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
Furnished Items and Quantity1 SETSCREW
Style DesignatorPLAIN ROUND
Surface TreatmentPASSIVATE
MaterialSTEEL COMP 303
Nominal Thread Size0.138 INCHES SINGLE HOLE IN
Thickness0.250 INCHES NOMINAL IN
Screw Thread Series Designator and LocationSINGLE HOLE UNIFIED NATIONAL COARSE (UNC)
Outside Diameter0.500 INCHES NOMINAL IN
Bore Diameter0.2400 INCHES MINIMUM AND 0.2410 INCHES MAXIMUM IN
Securing Hole Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-0223377 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
3455-00-236-2087C16 INTERCHANGEABLE
Cutter,milling,convex
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
4940-00-399-2439C16 INTERCHANGEABLE
Crank and Pawl Asse
Butterworth, Inc.
4320-00-451-7965 INTERCHANGEABLE
Stuffing Gland Box
5999-00-474-5394 INTERCHANGEABLE
Clip,electrical
5930-00-549-0358 INTERCHANGEABLE
Switch,thermostatic
5360-00-597-8953 INTERCHANGEABLE
Spring,helical,compression
6850-00-598-73111186 INTERCHANGEABLE
Leak Preventive Compound,radiato
Bar's Products Inc Dba Bar's Leak Inc
5340-00-682-2119 INTERCHANGEABLE
Cap,protective,dust and Moisture
3110-00-827-8648L44610 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
Cross-Reference Index
Part NumberManufacturer
EH2-6 PRIMARY Secs Inc (USA)
C1-6 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
Related Parts
3110-00-100-0223INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
377
3455-00-236-2087INTERCHANGEABLE
CUTTER,MILLING,CONVEX
C16
4940-00-399-2439INTERCHANGEABLE
CRANK AND PAWL ASSE
C16
4320-00-451-7965INTERCHANGEABLE
STUFFING GLAND BOX
5999-00-474-5394INTERCHANGEABLE
CLIP,ELECTRICAL
5930-00-549-0358INTERCHANGEABLE
SWITCH,THERMOSTATIC
5360-00-597-8953INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
6850-00-598-7311INTERCHANGEABLE
LEAK PREVENTIVE COMPOUND,RADIATO
1186
5340-00-682-2119INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
3110-00-827-8648INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
L44610
6850-01-085-1423INTERCHANGEABLE
CARBON REMOVING COMPOUND
2+2 GUMCUTTER B101
5110-01-116-1037INTERCHANGEABLE
CHISEL,COLD,HAND
C-16

Frequently Asked Questions

What is NSN 3040-00-417-2546?

NSN 3040-00-417-2546 is a Collar,shaft, manufactured by Secs Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-417-2546?

NSN 3040-00-417-2546 has 2 cross-referenced part numbers: EH2-6 (Secs Inc), C1-6 (Roller Bearing Co of America, Inc Div Pic Design).

What NSN replaces 3040-00-417-2546?

There are 12 known substitutes for 3040-00-417-2546: 3110-00-100-0223, 3455-00-236-2087, 4940-00-399-2439 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of EH2-6?

Key specifications for EH2-6: Securing Hole Type and Location: THREADED SINGLE HOLE; Material Document and Classification: QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC SINGLE MATERIAL RESPONSE; Furnished Items and Quantity: 1 SETSCREW; Style Designator: PLAIN ROUND. 13 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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