PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30878Collar,shaft

Barnes Group Inc. Dba Barnes Distribution · NSN 3040-01-389-2276 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-389-2276 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-389-2276. Primary manufacturer part number: 30878.
Features
  • Collar,shaft — FSC 3040
  • Material: STEEL
  • Outside Diameter: 1.750 INCHES NOMINAL IN
  • Bore Diameter: 1.0000 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Barnes Group Inc. Dba Barnes Distribution
Applications
  • Applications requiring Steel construction
General Description

The Collar,shaft, cataloged under National Stock Number 3040-01-389-2276, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Barnes Group Inc. Dba Barnes Distribution. Government technical data includes 3 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-389-2276
Primary Part Number30878
Item NameCollar,shaft
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerBarnes Group Inc. Dba Barnes Distribution
StatusACTIVE
MaterialSTEEL
Outside Diameter1.750 INCHES NOMINAL IN
Bore Diameter1.0000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5915-00-578-52551-003-0070-AA INTERCHANGEABLE
Filter,high Pass
Cec Vibration Products, Llc Dba Cec Vibrations Products
6145-01-157-09338621 INTERCHANGEABLE
Cable,power,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
6550-01-234-959930-878 INTERCHANGEABLE
Sensitivity Discs,diagnostic
Remel Inc.
Cross-Reference Index
Part NumberManufacturer
30878 PRIMARY Barnes Group Inc. Dba Barnes Distribution (USA)
Related Parts
5915-00-578-5255INTERCHANGEABLE
FILTER,HIGH PASS
1-003-0070-AA
6145-01-157-0933INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
8621
6550-01-234-9599INTERCHANGEABLE
SENSITIVITY DISCS,DIAGNOSTIC
30-878

Frequently Asked Questions

What is NSN 3040-01-389-2276?

NSN 3040-01-389-2276 is a Collar,shaft, manufactured by Barnes Group Inc. Dba Barnes Distribution, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-389-2276?

NSN 3040-01-389-2276 has 1 cross-referenced part number: 30878 (Barnes Group Inc. Dba Barnes Distribution).

What NSN replaces 3040-01-389-2276?

There are 3 known substitutes for 3040-01-389-2276: 5915-00-578-5255, 6145-01-157-0933, 6550-01-234-9599. Verify interchangeability with system specifications before substitution.

What are the specifications of 30878?

Key specifications for 30878: Material: STEEL; Special Features: ALLOY STEEL SOCKET HEAD CAP SCREW TWO PIECE, BLACK FINISH; Outside Diameter: 1.750 INCHES NOMINAL IN; Bore Diameter: 1.0000 INCHES NOMINAL IN. 4 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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