PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

265037Bolt,machine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5306-00-637-8492 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-637-8492 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-637-8492. Primary manufacturer part number: 265037.
Features
  • Bolt,machine — FSC 5306
  • Surface Treatment: SILVER GRIP
  • Material Document and Classification: AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Features Provided: FINISHED HEAD
  • Width Between Flats: 0.498 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Nonstandard Thread Pitch Diameter: +0.2797 TO 0.2824 INCHES IN
  • Thread Direction: RIGHT-HAND
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 5306-00-637-8492, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-637-8492
Primary Part Number265037
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Surface TreatmentSILVER GRIP
Material Document and ClassificationAMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Features ProvidedFINISHED HEAD
Width Between Flats0.498 INCHES NOMINAL IN
Nominal Thread Diameter0.312 INCHES IN
Nonstandard Thread Pitch Diameter+0.2797 TO 0.2824 INCHES IN
Thread DirectionRIGHT-HAND
Head Height0.188 INCHES NOMINAL IN
Fastener Length0.500 INCHES NOMINAL IN
Head StyleHEXAGON
Hardness Rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Thread Series DesignatorUNF
Thread Quantity Per Inch24
Precious MaterialSILVER
MaterialSTEEL CORROSION RESISTING OVERALL
Thread Length0.500 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5325-00-263-5869 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
265037 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5325-00-263-5869INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5306-00-637-8492?

NSN 5306-00-637-8492 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 5306-00-637-8492?

NSN 5306-00-637-8492 has 1 cross-referenced part number: 265037 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5306-00-637-8492?

There is 1 known substitute for 5306-00-637-8492: 5325-00-263-5869. Verify interchangeability with system specifications before substitution.

What are the specifications of 265037?

Key specifications for 265037: Surface Treatment: SILVER GRIP; Material Document and Classification: AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Features Provided: FINISHED HEAD; Width Between Flats: 0.498 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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