PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51518Shield,expansion

Fastenal Company Div Fastenal-Hvga · NSN 5340-01-621-3491 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-621-3491 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-621-3491. Primary manufacturer part number: 51518.
Features
  • Shield,expansion — FSC 5340
  • Material: STEEL
  • Surface Treatment: ZINC
  • Thread Provision: THREADED
  • Head Style: HEXAGON
  • 1 verified cross-reference
  • Primary manufacturer: Fastenal Company Div Fastenal-Hvga
Applications
  • Applications requiring Steel construction
General Description

The Shield,expansion, cataloged under National Stock Number 5340-01-621-3491, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Div Fastenal-Hvga. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-621-3491
Primary Part Number51518
Item NameShield,expansion
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerFastenal Company Div Fastenal-Hvga
StatusACTIVE
MaterialSTEEL
Surface TreatmentZINC
Thread ProvisionTHREADED
Head StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 5
3020-00-528-124951518 INTERCHANGEABLE
Gear,spur
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
2940-00-633-491151518 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5905-00-890-43495351-072 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Raytheon Company Div Rmd Strategic
5950-01-340-616251518 INTERCHANGEABLE
Coil,electrical
Columbus Mckinnon Corp
5120-01-428-513651-518 INTERCHANGEABLE
Hammer,hand
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
51518 PRIMARY Fastenal Company Div Fastenal-Hvga (USA)
Related Parts
3020-00-528-1249INTERCHANGEABLE
GEAR,SPUR
51518
2940-00-633-4911INTERCHANGEABLE
FILTER ELEMENT,FLUID
51518
5905-00-890-4349INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5351-072
5950-01-340-6162INTERCHANGEABLE
COIL,ELECTRICAL
51518
5120-01-428-5136INTERCHANGEABLE
HAMMER,HAND
51-518

Frequently Asked Questions

What is NSN 5340-01-621-3491?

NSN 5340-01-621-3491 is a Shield,expansion, manufactured by Fastenal Company Div Fastenal-Hvga, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-621-3491?

NSN 5340-01-621-3491 has 1 cross-referenced part number: 51518 (Fastenal Company Div Fastenal-Hvga).

What NSN replaces 5340-01-621-3491?

There are 5 known substitutes for 5340-01-621-3491: 3020-00-528-1249, 2940-00-633-4911, 5905-00-890-4349 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51518?

Key specifications for 51518: Material: STEEL; Part Name Assigned by Controlling Agency: TAPER BOLT ANCHOR; Overall Length: 8.000 INCHES NOMINAL IN; Surface Treatment: ZINC. 6 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