PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

655056Bolt,shoulder

Sps Technologies, Llc Dba PB Fasteners · NSN 5306-00-486-2603 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-486-2603 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-486-2603. Primary manufacturer part number: 655056.
Features
  • Bolt,shoulder — FSC 5306
  • Thread Length: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
  • Shoulder Length: 1.230 INCHES MINIMUM AND 1.240 INCHES MAXIMUM FIRST SHOULDER IN
  • Head Style: DOUBLE HEXAGON W/HOLE
  • Head Height: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 32
  • Thread Class: 3A A
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8740 Overall construction
General Description

The Bolt,shoulder, cataloged under National Stock Number 5306-00-486-2603, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-486-2603
Primary Part Number655056
Item NameBolt,shoulder
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba PB Fasteners
StatusACTIVE
Thread Length0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
Shoulder Length1.230 INCHES MINIMUM AND 1.240 INCHES MAXIMUM FIRST SHOULDER IN
Head StyleDOUBLE HEXAGON W/HOLE
Head Height0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch32
Thread Class3A A
Width Between Flats0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
Shoulder Diameter0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM FIRST SHOULDER IN
Hole TypeDRILLED
Shoulder ShapeROUND ALL SHOULDERS
Hole Configuration StyleDOUBLE HEXAGON LONGITUDINAL HOLE
MaterialSTEEL COMP 8740 OVERALL
Thread Series DesignatorUNF
Head Diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Extended Washer Diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Hole Quantity6
Shoulder Diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM SECOND SHOULDER IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Shoulder Length1.270 INCHES MINIMUM AND 1.290 INCHES MAXIMUM SECOND SHOULDER IN
Fastener Length1.885 INCHES MINIMUM AND 1.925 INCHES MAXIMUM IN
Extended Washer Thickness0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
Hole Diameter0.047 INCHES NOMINAL IN
Nominal Thread Diameter0.190 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
1220-00-159-0540655056 INTERCHANGEABLE
Plate,thrust
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5985-01-150-646490BX809 INTERCHANGEABLE
Waveguide Assembly
Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
655056 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
655056 Valco Co Government Sales Office (USA)
655056 PRIMARY Sps Technologies, Llc Dba PB Fasteners (USA)
655056 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
655056 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
Related Parts
1220-00-159-0540INTERCHANGEABLE
PLATE,THRUST
655056
5985-01-150-6464INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
90BX809

Frequently Asked Questions

What is NSN 5306-00-486-2603?

NSN 5306-00-486-2603 is a Bolt,shoulder, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-486-2603?

NSN 5306-00-486-2603 has 5 cross-referenced part numbers: 655056 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 655056 (Valco Co Government Sales Office), 655056 (Sps Technologies, Llc Dba PB Fasteners), 655056 (Howmet Global Fastening Systems Inc Div Torrance Operations), 655056 (Turbo Power & Marine System Inc Sub of United Technologies Corp).

What NSN replaces 5306-00-486-2603?

There are 2 known substitutes for 5306-00-486-2603: 1220-00-159-0540, 5985-01-150-6464. Verify interchangeability with system specifications before substitution.

What are the specifications of 655056?

Key specifications for 655056: Thread Length: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN; Shoulder Length: 1.230 INCHES MINIMUM AND 1.240 INCHES MAXIMUM FIRST SHOULDER IN; Head Style: DOUBLE HEXAGON W/HOLE; Head Height: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN. 24 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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