PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN775-4CBolt,fluid Passage

Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group · NSN 4730-00-541-6613 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-541-6613 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-541-6613. Primary manufacturer part number: AN775-4C.
Features
  • Bolt,fluid Passage — FSC 4730
  • First End Thread Direction: RIGHT-HAND
  • Length From Bearing Surface of Wrenching Feature to Bolt End: 1.188 INCHES NOMINAL IN
  • Length From Bearing Surface of Wrenching Feature to End of First Diameter: 0.750 INCHES NOMINAL IN
  • First End Thread Length: 0.438 INCHES NOMINAL IN
  • Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321
  • Body Style: PLAIN
  • Concentric Hole Depth: 1.156 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 303 or Steel Comp 304 or Steel Comp 316 or Steel Comp 321 construction
General Description

The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-541-6613, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-541-6613
Primary Part NumberAN775-4C
Item NameBolt,fluid Passage
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAir Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group
StatusCANCELLED
First End Thread DirectionRIGHT-HAND
Length From Bearing Surface of Wrenching Feature to Bolt End1.188 INCHES NOMINAL IN
Length From Bearing Surface of Wrenching Feature to End of First Diameter0.750 INCHES NOMINAL IN
First End Thread Length0.438 INCHES NOMINAL IN
MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321
Body StylePLAIN
Concentric Hole Depth1.156 INCHES NOMINAL IN
First Radial Fluid Hole Diameter0.188 INCHES NOMINAL IN
Distance From First Radial Hole Center to End of Bolt0.771 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN
Width Across Flats0.684 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN
First End Nominal Thread Size0.438 INCHES IN
First Diameter From Wrenching Feature0.431 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
First End Seat Angle45.0 DEGREES NOMINAL
Concentric Hole Diameter0.172 INCHES NOMINAL IN
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
First End Thread Series DesignatorUNF
Surface TreatmentPASSIVATE
Wrenching Feature StyleHEXAGON
Wrenching Feature Height0.188 INCHES NOMINAL IN
First End Style DesignatorFLARED
First End Connection TypeTHREADED EXTERNAL TUBE
First End Thread Class3A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
2930-01-618-2459400596 INTERCHANGEABLE
Radiator,engine Coolant
Hydrema U.s., Inc. Dba Hydrema Us Inc
Cross-Reference Index
Part NumberManufacturer
AN775-4C Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group
AN775-4C Aeronautical Standards Group Dept of Navy and Air Force (USA)
400596 Singer Co the (USA)
AN775-4C Stockham Valves and Fittings Inc (USA)
AN775-4C Air Associates Inc (USA)
MILF5509 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
2930-01-618-2459INTERCHANGEABLE
RADIATOR,ENGINE COOLANT
400596

Frequently Asked Questions

What is NSN 4730-00-541-6613?

NSN 4730-00-541-6613 is a Bolt,fluid Passage, manufactured by Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-541-6613?

NSN 4730-00-541-6613 has 6 cross-referenced part numbers: AN775-4C (Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group), AN775-4C (Aeronautical Standards Group Dept of Navy and Air Force), 400596 (Singer Co the), AN775-4C (Stockham Valves and Fittings Inc), AN775-4C (Air Associates Inc) and 1 more.

What NSN replaces 4730-00-541-6613?

There is 1 known substitute for 4730-00-541-6613: 2930-01-618-2459. Verify interchangeability with system specifications before substitution.

What are the specifications of AN775-4C?

Key specifications for AN775-4C: Overall Length: 1.375 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to Bolt End: 1.188 INCHES NOMINAL IN; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 0.750 INCHES NOMINAL IN. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-541-6613 still in active supply?

NSN 4730-00-541-6613 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com