PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1818051-3Bolt,internally Relieved Body

Northrop Grumman Systems Corporation · NSN 5306-01-068-5494 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-068-5494 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-068-5494. Primary manufacturer part number: 1818051-3.
Features
  • Bolt,internally Relieved Body — FSC 5306
  • Head Style: HEXAGON
  • Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Width Between Flats: 0.437 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL COMP 303 OVERALL
  • Style Designator: CONCENTRIC HOLE UNTHREADED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-068-5494, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 16 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-068-5494
Primary Part Number1818051-3
Item NameBolt,internally Relieved Body
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Head StyleHEXAGON
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Width Between Flats0.437 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 303 OVERALL
Style DesignatorCONCENTRIC HOLE UNTHREADED
Thread Series DesignatorUNF
Concentric Hole Diameter0.218 INCHES NOMINAL IN
Fastener Length0.793 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
Thread Length0.653 INCHES MINIMUM AND 0.723 INCHES MAXIMUM IN
Thread Class2A A
Head Height0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
Nominal Thread Diameter0.375 INCHES IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch24
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-01-095-05271818-0513 INTERCHANGEABLE
Microcircuit,digital
Keysight Technologies Inc
Cross-Reference Index
Part NumberManufacturer
1818051-3 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
5962-01-095-0527INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
1818-0513

Frequently Asked Questions

What is NSN 5306-01-068-5494?

NSN 5306-01-068-5494 is a Bolt,internally Relieved Body, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-01-068-5494?

NSN 5306-01-068-5494 has 1 cross-referenced part number: 1818051-3 (Northrop Grumman Systems Corporation).

What NSN replaces 5306-01-068-5494?

There is 1 known substitute for 5306-01-068-5494: 5962-01-095-0527. Verify interchangeability with system specifications before substitution.

What are the specifications of 1818051-3?

Key specifications for 1818051-3: Head Style: HEXAGON; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Width Between Flats: 0.437 INCHES NOMINAL IN; Surface Treatment: PASSIVATE OVERALL. 17 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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