PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

761001Bolt,internally Relieved Body

Lockheed Martin Corp · NSN 5306-00-693-6661 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-693-6661 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-693-6661. Primary manufacturer part number: 761001.
Features
  • Bolt,internally Relieved Body — FSC 5306
  • Style Designator: CONCENTRIC HOLE UNTHREADED
  • Thread Quantity Per Inch: 14
  • Shank Unthreaded Hole Diameter: 0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST HOLE IN
  • Surface Treatment: CHROMIUM OVERALL
  • Thread Series Designator: UNF
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 0.875 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8740 Overall construction
General Description

The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-693-6661, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 18 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-693-6661
Primary Part Number761001
Item NameBolt,internally Relieved Body
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Style DesignatorCONCENTRIC HOLE UNTHREADED
Thread Quantity Per Inch14
Shank Unthreaded Hole Diameter0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST HOLE IN
Surface TreatmentCHROMIUM OVERALL
Thread Series DesignatorUNF
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.875 INCHES IN
Head Height0.250 INCHES NOMINAL IN
MaterialSTEEL COMP 8740 OVERALL
Thread Length0.531 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
Thread Class3A A
Minimum Tensile Strength190000 POUNDS PER SQUARE INCH LBS
Distance From Head Largest Bearing Surface to Shank Hole Center2.422 INCHES MINIMUM AND 2.454 INCHES MAXIMUM FIRST HOLE IN
Fastener Length0.625 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN
Width Between Flats1.375 INCHES NOMINAL IN
Concentric Hole Diameter0.249 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Material Document and ClassificationMIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Head StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4320-01-146-5920 INTERCHANGEABLE
Motor,hydraulic
6220-01-246-2102486-3601 INTERCHANGEABLE
Light,warning
Genuine Parts Co Dba Napa Auto Parts
Cross-Reference Index
Part NumberManufacturer
761001 PRIMARY Lockheed Martin Corp (USA)
Related Parts
4320-01-146-5920INTERCHANGEABLE
MOTOR,HYDRAULIC
6220-01-246-2102INTERCHANGEABLE
LIGHT,WARNING
486-3601

Frequently Asked Questions

What is NSN 5306-00-693-6661?

NSN 5306-00-693-6661 is a Bolt,internally Relieved Body, manufactured by Lockheed Martin Corp, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-693-6661?

NSN 5306-00-693-6661 has 1 cross-referenced part number: 761001 (Lockheed Martin Corp).

What NSN replaces 5306-00-693-6661?

There are 2 known substitutes for 5306-00-693-6661: 4320-01-146-5920, 6220-01-246-2102. Verify interchangeability with system specifications before substitution.

What are the specifications of 761001?

Key specifications for 761001: Style Designator: CONCENTRIC HOLE UNTHREADED; Thread Quantity Per Inch: 14; Shank Unthreaded Hole Diameter: 0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST HOLE IN; Surface Treatment: CHROMIUM OVERALL. 18 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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