PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M30011210Coupling Half,shaft

Magnaloy Coupling Co Div of Douville-Johnston Corp · NSN 3010-01-373-7963 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-01-373-7963 — this item is cataloged by the U.S. Government under National Stock Number 3010-01-373-7963. Primary manufacturer part number: M30011210.
Features
  • Coupling Half,shaft — FSC 3010
  • Body Style: FLEXIBLE SPIDER, INSERT TYPE, THROUGH BORE
  • Bore Diameter: 1.3750 INCHES NOMINAL IN
  • Material: ALUMINUM AND IRON CAST
  • Outside Diameter: 3.450 INCHES NOMINAL IN
  • Bore Length: 0.9970 INCHES NOMINAL IN
  • Bore Shape: STRAIGHT
  • Features Provided: KEYWAY
Applications
  • Applications requiring Aluminum and Iron Cast construction
General Description

The Coupling Half,shaft, cataloged under National Stock Number 3010-01-373-7963, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Magnaloy Coupling Co Div of Douville-Johnston Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN3010-01-373-7963
Primary Part NumberM30011210
Item NameCoupling Half,shaft
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerMagnaloy Coupling Co Div of Douville-Johnston Corp
StatusACTIVE
Body StyleFLEXIBLE SPIDER, INSERT TYPE, THROUGH BORE
Bore Diameter1.3750 INCHES NOMINAL IN
MaterialALUMINUM AND IRON CAST
Outside Diameter3.450 INCHES NOMINAL IN
Bore Length0.9970 INCHES NOMINAL IN
Bore ShapeSTRAIGHT
Features ProvidedKEYWAY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3010-01-373-1348432899 INTERCHANGEABLE
Insert,flexible Coupling
Racine Hydraulics Div Dana Corp
3010-01-373-3214434144 INTERCHANGEABLE
Coupling Half,shaft
Racine Hydraulics Div Dana Corp
Cross-Reference Index
Part NumberManufacturer
M30011210 PRIMARY Magnaloy Coupling Co Div of Douville-Johnston Corp (USA)
6303373 Naval Sea Systems Command (USA)
6303373-001 Naval Sea Systems Command (USA)
432930 PRIMARY Racine Hydraulics Div Dana Corp (USA)
Related Parts
3010-01-373-1348INTERCHANGEABLE
INSERT,FLEXIBLE COUPLING
432899
3010-01-373-3214INTERCHANGEABLE
COUPLING HALF,SHAFT
434144

Frequently Asked Questions

What is NSN 3010-01-373-7963?

NSN 3010-01-373-7963 is a Coupling Half,shaft, manufactured by Magnaloy Coupling Co Div of Douville-Johnston Corp, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-01-373-7963?

NSN 3010-01-373-7963 has 4 cross-referenced part numbers: M30011210 (Magnaloy Coupling Co Div of Douville-Johnston Corp), 6303373 (Naval Sea Systems Command), 6303373-001 (Naval Sea Systems Command), 432930 (Racine Hydraulics Div Dana Corp).

What NSN replaces 3010-01-373-7963?

There are 2 known substitutes for 3010-01-373-7963: 3010-01-373-1348, 3010-01-373-3214. Verify interchangeability with system specifications before substitution.

What are the specifications of M30011210?

Key specifications for M30011210: Body Style: FLEXIBLE SPIDER, INSERT TYPE, THROUGH BORE; Special Features: BODY KEYING FACILITY DEP/HT:0.440" NOM.; BORE COUNTERBORE FEATURE:NOT INCLUDED; KEYING FACILITY QTY:1; HUB OD:2.900" NOM.; THREAD PROVISION:UNTHREADED; DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY:0.997" NOM.; KEYWAY WD:0.312" NOM.; FLANGE THICKNESS:0.780" NOM.; Overall Length: 1.740 INCHES NOMINAL IN; Bore Diameter: 1.3750 INCHES NOMINAL IN. 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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