PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51671Shaft,shouldered

Arma Div Ambac Industries Inc · NSN 3040-00-335-9900 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-335-9900 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-335-9900. Primary manufacturer part number: 51671.
Features
  • Shaft,shouldered — FSC 3040
  • End Similarity: IDENTICAL
  • First End Style: PLAIN
  • Material: STEEL CORROSION RESISTING
  • First End Diameter: 0.4380 INCHES NOMINAL IN
  • Step Quantity: 4
  • Largest Step Diameter: 0.750 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-335-9900, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Arma Div Ambac Industries Inc. Government technical data includes 6 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
NSN3040-00-335-9900
Primary Part Number51671
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerArma Div Ambac Industries Inc
StatusACTIVE
End SimilarityIDENTICAL
First End StylePLAIN
MaterialSTEEL CORROSION RESISTING
First End Diameter0.4380 INCHES NOMINAL IN
Step Quantity4
Largest Step Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5120-00-104-9022AWM-51671 INTERCHANGEABLE
Wire Unwrapping Tool
A.w. Mack Manufacturing Co., Inc.
5815-00-392-9524 INTERCHANGEABLE
Pawl Assy
5962-00-497-3917351-7321-050 INTERCHANGEABLE
Microcircuit,linear
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
2940-01-131-59283302026 INTERCHANGEABLE
Filter Element,fluid
Cummins Inc.
1340-01-482-504951671 INTERCHANGEABLE
Rocket,practice,21 Millimeter Su
Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc
Cross-Reference Index
Part NumberManufacturer
51671 Arma Div Ambac Industries Inc
51671 Cub Co (USA)
Related Parts
5120-00-104-9022INTERCHANGEABLE
WIRE UNWRAPPING TOOL
AWM-51671
5815-00-392-9524INTERCHANGEABLE
PAWL ASSY
5962-00-497-3917INTERCHANGEABLE
MICROCIRCUIT,LINEAR
351-7321-050
2940-01-131-5928INTERCHANGEABLE
FILTER ELEMENT,FLUID
3302026
1340-01-482-5049INTERCHANGEABLE
ROCKET,PRACTICE,21 MILLIMETER SU
51671

Frequently Asked Questions

What is NSN 3040-00-335-9900?

NSN 3040-00-335-9900 is a Shaft,shouldered, manufactured by Arma Div Ambac Industries Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-335-9900?

NSN 3040-00-335-9900 has 2 cross-referenced part numbers: 51671 (Arma Div Ambac Industries Inc), 51671 (Cub Co).

What NSN replaces 3040-00-335-9900?

There are 5 known substitutes for 3040-00-335-9900: 5120-00-104-9022, 5815-00-392-9524, 5962-00-497-3917 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51671?

Key specifications for 51671: End Similarity: IDENTICAL; First End Style: PLAIN; Material: STEEL CORROSION RESISTING; Overall Length: 6.313 INCHES NOMINAL IN. 7 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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