PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5190821Standoff,threaded,spacing

Naval Sea Systems Command · NSN 5340-01-297-8425 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-297-8425 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-297-8425. Primary manufacturer part number: 5190821.
Features
  • Standoff,threaded,spacing — FSC 5340
  • Style Designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
  • Cross-Sectional Shape: HEXAGON
  • Width Across Flats: 0.375 INCHES NOMINAL IN
  • Length: 0.600 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-297-8425, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-297-8425
Primary Part Number5190821
Item NameStandoff,threaded,spacing
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Style DesignatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
Cross-Sectional ShapeHEXAGON
Width Across Flats0.375 INCHES NOMINAL IN
Length0.600 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
2530-01-605-13476H04631 INTERCHANGEABLE
Pneumatic Tire
Carlisle Tire & Wheel Co
Cross-Reference Index
Part NumberManufacturer
5190821 PRIMARY Naval Sea Systems Command (USA)
5190821 General Dynamics Defense Systems Inc. Dba General Dynamics Advanced Information Systems (USA)
Related Parts
2530-01-605-1347INTERCHANGEABLE
PNEUMATIC TIRE
6H04631

Frequently Asked Questions

What is NSN 5340-01-297-8425?

NSN 5340-01-297-8425 is a Standoff,threaded,spacing, manufactured by Naval Sea Systems Command, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-297-8425?

NSN 5340-01-297-8425 has 2 cross-referenced part numbers: 5190821 (Naval Sea Systems Command), 5190821 (General Dynamics Defense Systems Inc. Dba General Dynamics Advanced Information Systems).

What NSN replaces 5340-01-297-8425?

There is 1 known substitute for 5340-01-297-8425: 2530-01-605-1347. Verify interchangeability with system specifications before substitution.

What are the specifications of 5190821?

Key specifications for 5190821: Style Designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD; Cross-Sectional Shape: HEXAGON; Width Across Flats: 0.375 INCHES NOMINAL IN; Length: 0.600 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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