PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7999Bolt,machine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5306-00-147-6516 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-147-6516 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-147-6516. Primary manufacturer part number: 7999.
Features
  • Bolt,machine — FSC 5306
  • Head Style: HEXAGON
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Hole Quantity: 6
  • Fastener Length: 1.281 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 18
  • Material Document and Classification: AMS6320 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6448 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Head Height: 0.234 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8735 or Steel Comp 6150 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-147-6516, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-147-6516
Primary Part Number7999
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Head StyleHEXAGON
Nominal Thread Diameter0.312 INCHES IN
Hole Quantity6
Fastener Length1.281 INCHES NOMINAL IN
Thread Quantity Per Inch18
Material Document and ClassificationAMS6320 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6448 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Head Height0.234 INCHES NOMINAL IN
Thread Length0.875 INCHES MINIMUM IN
Thread Class3A A
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL COMP 8735 OR STEEL COMP 6150 OVERALL
Hole TypeDRILLED
Width Between Flats0.500 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Features ProvidedFINISHED HEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6625-00-113-96317999 INTERCHANGEABLE
Probe-Lead Assembly,test
Bae Systems Information and Electronic Systems Integration Inc.
2805-00-358-3403 INTERCHANGEABLE
Ring Set,piston
5960-00-494-4763 INTERCHANGEABLE
Electron Tube
5960-00-891-74411971-0004 INTERCHANGEABLE
Electron Tube
Keysight Technologies Inc
Cross-Reference Index
Part NumberManufacturer
7999 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
6625-00-113-9631INTERCHANGEABLE
PROBE-LEAD ASSEMBLY,TEST
7999
2805-00-358-3403INTERCHANGEABLE
RING SET,PISTON
5960-00-494-4763INTERCHANGEABLE
ELECTRON TUBE
5960-00-891-7441INTERCHANGEABLE
ELECTRON TUBE
1971-0004

Frequently Asked Questions

What is NSN 5306-00-147-6516?

NSN 5306-00-147-6516 is a Bolt,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-147-6516?

NSN 5306-00-147-6516 has 1 cross-referenced part number: 7999 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5306-00-147-6516?

There are 4 known substitutes for 5306-00-147-6516: 6625-00-113-9631, 2805-00-358-3403, 5960-00-494-4763 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7999?

Key specifications for 7999: Head Style: HEXAGON; Nominal Thread Diameter: 0.312 INCHES IN; Hole Quantity: 6; Fastener Length: 1.281 INCHES NOMINAL IN. 16 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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