PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23037239Bolt,externally Relieved Body

Rolls-Royce Corporation · NSN 5306-00-076-4205 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-076-4205 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-076-4205. Primary manufacturer part number: 23037239.
Features
  • Bolt,externally Relieved Body — FSC 5306
  • Distance From Largest Bearing Surface of Head to End of Third Diameter: 1.840 INCHES NOMINAL IN
  • Fastener Length: 4.023 INCHES NOMINAL IN
  • Width Between Flats: 0.360 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
  • Third Diameter From Head: 0.309 INCHES NOMINAL IN
  • Distance From Largest Bearing Surface of Head to End of Fourth Diameter: 2.150 INCHES NOMINAL IN
  • Fifth Diameter From Head: 0.312 INCHES NOMINAL IN
  • Fourth Diameter From Head: 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-076-4205, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rolls-Royce Corporation. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-076-4205
Primary Part Number23037239
Item NameBolt,externally Relieved Body
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerRolls-Royce Corporation
StatusCANCELLED
Distance From Largest Bearing Surface of Head to End of Third Diameter1.840 INCHES NOMINAL IN
Fastener Length4.023 INCHES NOMINAL IN
Width Between Flats0.360 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Third Diameter From Head0.309 INCHES NOMINAL IN
Distance From Largest Bearing Surface of Head to End of Fourth Diameter2.150 INCHES NOMINAL IN
Fifth Diameter From Head0.312 INCHES NOMINAL IN
Fourth Diameter From Head0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
Extended Washer Thickness0.050 INCHES NOMINAL IN
First Diameter From Head0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Thread Class3A A
Extended Washer Diameter0.580 INCHES NOMINAL IN
Thread Length0.408 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Second Diameter From Head0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Distance From Largest Bearing Surface of Head to End of Fifth Diameter3.580 INCHES MINIMUM AND 3.620 INCHES MAXIMUM IN
Head Height0.319 INCHES NOMINAL IN
Distance From Largest Bearing Surface of Head to End of Second Diameter0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
Distance From Largest Bearing Surface of Head to End of First Diameter0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
Head StyleDOUBLE HEXAGON W/HOLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
No Item Name Available
5950-00-009-55273024399 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
23037239 Acufast Aircraft Products (USA)
23037239 PRIMARY Rolls-Royce Corporation (USA)
23037239 M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA)
6825364 General Motors Corp (USA)
5306PL0850450 Jednolity Indeks Materialowy - Uniform Material Index (POL)
6825364 Allison Transmission Inc Dba Allison Transmission, Inc (USA)
6825364 Rolls-Royce Corporation (USA)
6825364 M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA)
02924 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
6784932 Rolls-Royce Corporation (USA)
Related Parts
5306-00-846-6540SUCCESSOR
NO ITEM NAME AVAILABLE
5950-00-009-5527INTERCHANGEABLE
TRANSFORMER,POWER
3024399

Frequently Asked Questions

What is NSN 5306-00-076-4205?

NSN 5306-00-076-4205 is a Bolt,externally Relieved Body, manufactured by Rolls-Royce Corporation, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-076-4205?

NSN 5306-00-076-4205 has 10 cross-referenced part numbers: 23037239 (Acufast Aircraft Products), 23037239 (Rolls-Royce Corporation), 23037239 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 6825364 (General Motors Corp), 5306PL0850450 (Jednolity Indeks Materialowy - Uniform Material Index) and 5 more.

What NSN replaces 5306-00-076-4205?

There are 2 known substitutes for 5306-00-076-4205: 5306-00-846-6540, 5950-00-009-5527. Verify interchangeability with system specifications before substitution.

What are the specifications of 23037239?

Key specifications for 23037239: Distance From Largest Bearing Surface of Head to End of Third Diameter: 1.840 INCHES NOMINAL IN; Fastener Length: 4.023 INCHES NOMINAL IN; Width Between Flats: 0.360 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Third Diameter From Head: 0.309 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-076-4205 still in active supply?

NSN 5306-00-076-4205 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.
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