PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

405726Bolt,machine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5306-01-087-1144 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-087-1144 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-087-1144. Primary manufacturer part number: 405726.
Features
  • Bolt,machine — FSC 5306
  • Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Material: STEEL CORROSION RESISTING OVERALL
  • Material Document and Classification: AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNF
  • Surface Finish: 32.0 MICROINCHES THREADS
  • Thread Direction: RIGHT-HAND
  • Features Provided: FINISHED HEAD
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-01-087-1144, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-087-1144
Primary Part Number405726
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Hardness Rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MaterialSTEEL CORROSION RESISTING OVERALL
Material Document and ClassificationAMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNF
Surface Finish32.0 MICROINCHES THREADS
Thread DirectionRIGHT-HAND
Features ProvidedFINISHED HEAD
Thread Quantity Per Inch24
Width Between Flats0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
Extended Washer Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Nominal Thread Diameter0.312 INCHES IN
Thread Length0.670 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
Extended Washer Thickness0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
Nonstandard Thread Pitch Diameter+0.2797 TO 0.2824 INCHES IN
Fastener Length2.600 INCHES MINIMUM AND 2.620 INCHES MAXIMUM IN
Surface Finish32.0 MICROINCHES BEARING SURFACE OF HEAD
Head StyleDOUBLE HEXAGON W/HOLE
Head Height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Surface Finish63.0 MICROINCHES GRIP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2915-00-073-7267405726 INTERCHANGEABLE
Plunger,valve,dump
Woodward, Inc. Div Fuel Systems and Controls
5961-00-275-7576 INTERCHANGEABLE
Semiconductor Devices,unitized
5330-01-140-2817114PS493-6 INTERCHANGEABLE
Gasket
The Boeing Company
Cross-Reference Index
Part NumberManufacturer
405726 Ssanford Tool & Design Inc (USA)
405726 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
405726 Sps Technologies, Llc Dba PB Fasteners (USA)
Related Parts
2915-00-073-7267INTERCHANGEABLE
PLUNGER,VALVE,DUMP
405726
5961-00-275-7576INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
5330-01-140-2817INTERCHANGEABLE
GASKET
114PS493-6

Frequently Asked Questions

What is NSN 5306-01-087-1144?

NSN 5306-01-087-1144 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 5306-01-087-1144?

NSN 5306-01-087-1144 has 3 cross-referenced part numbers: 405726 (Ssanford Tool & Design Inc), 405726 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 405726 (Sps Technologies, Llc Dba PB Fasteners).

What NSN replaces 5306-01-087-1144?

There are 3 known substitutes for 5306-01-087-1144: 2915-00-073-7267, 5961-00-275-7576, 5330-01-140-2817. Verify interchangeability with system specifications before substitution.

What are the specifications of 405726?

Key specifications for 405726: Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL; Material: STEEL CORROSION RESISTING OVERALL; Material Document and Classification: AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Series Designator: UNF. 19 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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