PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45103Collar,shaft

Northwestern Tools, Inc. · NSN 3040-01-395-3437 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-395-3437 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-395-3437. Primary manufacturer part number: 45103.
Features
  • Collar,shaft — FSC 3040
  • Material: PLASTIC POLYAMIDE NYLON
  • Outside Diameter: 0.750 INCHES NOMINAL IN
  • Bore Diameter: 0.3120 INCHES NOMINAL IN
  • Thickness: 0.281 INCHES NOMINAL IN
  • Style Designator: ROUND W/SINGLE CHAMFER
  • 2 verified cross-references
  • Primary manufacturer: Northwestern Tools, Inc.
Applications
  • Applications requiring Plastic Polyamide Nylon construction
General Description

The Collar,shaft, cataloged under National Stock Number 3040-01-395-3437, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northwestern Tools, Inc.. Government technical data includes 5 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-395-3437
Primary Part Number45103
Item NameCollar,shaft
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerNorthwestern Tools, Inc.
StatusACTIVE
MaterialPLASTIC POLYAMIDE NYLON
Outside Diameter0.750 INCHES NOMINAL IN
Bore Diameter0.3120 INCHES NOMINAL IN
Thickness0.281 INCHES NOMINAL IN
Style DesignatorROUND W/SINGLE CHAMFER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4930-00-387-949745103 INTERCHANGEABLE
Jaw,reversible
Mcneil Ohio Corp
5935-00-493-5585990C416H02 INTERCHANGEABLE
Connector,plug,electrical
Northrop Grumman Systems Corporation Dba Electronic Systems
5955-00-789-810545103 INTERCHANGEABLE
Oscillator,crystal Controlled
L3harris Technologies, Inc. Div Space and Airborne Systems
5955-01-090-0339C91-045103 INTERCHANGEABLE
Oscillator,crystal Controlled
Charles Industries, Llc Div Telecom
5120-01-398-939800945103000 INTERCHANGEABLE
Pliers
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
Cross-Reference Index
Part NumberManufacturer
45103 PRIMARY Northwestern Tools, Inc. (USA)
A3145435 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
4930-00-387-9497INTERCHANGEABLE
JAW,REVERSIBLE
45103
5935-00-493-5585INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
990C416H02
5955-00-789-8105INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
45103
5955-01-090-0339INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
C91-045103
5120-01-398-9398INTERCHANGEABLE
PLIERS
00945103000

Frequently Asked Questions

What is NSN 3040-01-395-3437?

NSN 3040-01-395-3437 is a Collar,shaft, manufactured by Northwestern Tools, Inc., classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-395-3437?

NSN 3040-01-395-3437 has 2 cross-referenced part numbers: 45103 (Northwestern Tools, Inc.), A3145435 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 3040-01-395-3437?

There are 5 known substitutes for 3040-01-395-3437: 4930-00-387-9497, 5935-00-493-5585, 5955-00-789-8105 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45103?

Key specifications for 45103: Material: PLASTIC POLYAMIDE NYLON; Outside Diameter: 0.750 INCHES NOMINAL IN; Bore Diameter: 0.3120 INCHES NOMINAL IN; Thickness: 0.281 INCHES NOMINAL IN. 5 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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