PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6253-1Bolt,ribbed Shoulder

Pdi Ground Support Systems, Inc. · NSN 5306-00-175-7483 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-175-7483 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-175-7483. Primary manufacturer part number: 6253-1.
Features
  • Bolt,ribbed Shoulder — FSC 5306
  • Shoulder Shape: ROUND FIRST SHOULDER
  • Thread Quantity Per Inch: 16
  • Rib Major Diameter: 0.812 INCHES NOMINAL IN
  • Distance From Largest Diameter of Bearing Surface of Head to Ribs: 0.750 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.750 INCHES IN
  • Thread Series Designator: UNF
  • Shoulder Length: 0.250 INCHES NOMINAL FIRST SHOULDER IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-00-175-7483, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pdi Ground Support Systems, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-175-7483
Primary Part Number6253-1
Item NameBolt,ribbed Shoulder
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerPdi Ground Support Systems, Inc.
StatusACTIVE
Shoulder ShapeROUND FIRST SHOULDER
Thread Quantity Per Inch16
Rib Major Diameter0.812 INCHES NOMINAL IN
Distance From Largest Diameter of Bearing Surface of Head to Ribs0.750 INCHES NOMINAL IN
Nominal Thread Diameter0.750 INCHES IN
Thread Series DesignatorUNF
Shoulder Length0.250 INCHES NOMINAL FIRST SHOULDER IN
Head StyleFLAT CHAMFER
Thread Length1.250 INCHES MINIMUM IN
Head Diameter1.250 INCHES NOMINAL IN
Head Height0.312 INCHES NOMINAL IN
Fastener Length2.125 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Rib Length0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2990-00-737-01292227919 INTERCHANGEABLE
Pipe,exhaust
Chrysler Realty Company Llc Dba Daimler Chrysler
5950-00-929-2749 INTERCHANGEABLE
Coil,radio Frequency
2590-01-305-226627806 INTERCHANGEABLE
Housing,brake,crane Hoist
Am General Llc
2520-01-514-9475278-06 INTERCHANGEABLE
Drive Unit,hydraulic
Parker Hannifin Corporation Div Chelsea Products Division
5330-01-547-2576118-6316 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
4930-01-592-0572 INTERCHANGEABLE
Vent Unit,relief
6145-01-680-476927806 INTERCHANGEABLE
Cable,special Purpose,electrical
Ortronics, Inc. Dba Ortronics Div Legrand Data Communications
Cross-Reference Index
Part NumberManufacturer
6253-1 PRIMARY Pdi Ground Support Systems, Inc. (USA)
27-806 Pdi Ground Support Systems, Inc. (USA)
Related Parts
2990-00-737-0129INTERCHANGEABLE
PIPE,EXHAUST
2227919
5950-00-929-2749INTERCHANGEABLE
COIL,RADIO FREQUENCY
2590-01-305-2266INTERCHANGEABLE
HOUSING,BRAKE,CRANE HOIST
27806
2520-01-514-9475INTERCHANGEABLE
DRIVE UNIT,HYDRAULIC
278-06
5330-01-547-2576INTERCHANGEABLE
GASKET
118-6316
4930-01-592-0572INTERCHANGEABLE
VENT UNIT,RELIEF
6145-01-680-4769INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
27806

Frequently Asked Questions

What is NSN 5306-00-175-7483?

NSN 5306-00-175-7483 is a Bolt,ribbed Shoulder, manufactured by Pdi Ground Support Systems, Inc., classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-175-7483?

NSN 5306-00-175-7483 has 2 cross-referenced part numbers: 6253-1 (Pdi Ground Support Systems, Inc.), 27-806 (Pdi Ground Support Systems, Inc.).

What NSN replaces 5306-00-175-7483?

There are 7 known substitutes for 5306-00-175-7483: 2990-00-737-0129, 5950-00-929-2749, 2590-01-305-2266 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6253-1?

Key specifications for 6253-1: Shoulder Shape: ROUND FIRST SHOULDER; Thread Quantity Per Inch: 16; Rib Major Diameter: 0.812 INCHES NOMINAL IN; Distance From Largest Diameter of Bearing Surface of Head to Ribs: 0.750 INCHES NOMINAL IN. 14 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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