PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128140Block,tapping

Nd Defense Llc · NSN 2590-01-556-6811 · FSC 2590 · No Item Name Available
Verified by PartsTable
NSN 2590-01-556-6811 — this item is cataloged by the U.S. Government under National Stock Number 2590-01-556-6811. Primary manufacturer part number: 128140.
Features
  • Block,tapping — FSC 2590
  • 2 verified cross-references
  • Primary manufacturer: Nd Defense Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Block,tapping, cataloged under National Stock Number 2590-01-556-6811, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Nd Defense Llc. This item has 2 commercial cross-references 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
NSN2590-01-556-6811
Primary Part Number128140
Item NameBlock,tapping
FSC / FSG2590 / 25 — No Item Name Available
ManufacturerNd Defense Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-278-3167209P-12-8 INTERCHANGEABLE
Bushing,pipe
Parker-Hannifin Corp Div Fluid System Connector Division
4730-00-278-3203 INTERCHANGEABLE
Bushing,pipe
3020-00-825-0692543-3798-002 INTERCHANGEABLE
Gear,spur
Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems
Cross-Reference Index
Part NumberManufacturer
128140 PRIMARY Nd Defense Llc (USA)
897709R1 Nd Defense Llc (USA)
Related Parts
4730-00-278-3167INTERCHANGEABLE
BUSHING,PIPE
209P-12-8
4730-00-278-3203INTERCHANGEABLE
BUSHING,PIPE
3020-00-825-0692INTERCHANGEABLE
GEAR,SPUR
543-3798-002

Frequently Asked Questions

What is NSN 2590-01-556-6811?

NSN 2590-01-556-6811 is a Block,tapping, manufactured by Nd Defense Llc, classified under FSC 2590 (No Item Name Available). Status: active.

What are the part numbers for NSN 2590-01-556-6811?

NSN 2590-01-556-6811 has 2 cross-referenced part numbers: 128140 (Nd Defense Llc), 897709R1 (Nd Defense Llc).

What NSN replaces 2590-01-556-6811?

There are 3 known substitutes for 2590-01-556-6811: 4730-00-278-3167, 4730-00-278-3203, 3020-00-825-0692. Verify interchangeability with system specifications before substitution.

What are the specifications of 128140?

Key specifications for 128140: End Item Identification: MRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS; Part Name Assigned by Controlling Agency: BUSHING, 3/4 TO 1/2 PLN OUT/H/. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com