PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-248Stud,stepped

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 5307-00-298-7646 · FSC 5307 · No Item Name Available
Verified by PartsTable
NSN 5307-00-298-7646 — this item is cataloged by the U.S. Government under National Stock Number 5307-00-298-7646. Primary manufacturer part number: 12-248.
Features
  • Stud,stepped — FSC 5307
  • Style Designator: STEPPED
  • Thread Class: 3A STUD THREAD A
  • Nominal Thread Size: 0.190 INCHES STUD THREAD IN
  • Thread Length: 0.312 INCHES MAXIMUM STUD THREAD IN
  • Surface Treatment: CADMIUM OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) STUD THREAD
  • Shank Diameter: 0.183 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel construction
General Description

The Stud,stepped, cataloged under National Stock Number 5307-00-298-7646, is classified within Federal Supply Class 5307 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5307-00-298-7646
Primary Part Number12-248
Item NameStud,stepped
FSC / FSG5307 / 53 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Style DesignatorSTEPPED
Thread Class3A STUD THREAD A
Nominal Thread Size0.190 INCHES STUD THREAD IN
Thread Length0.312 INCHES MAXIMUM STUD THREAD IN
Surface TreatmentCADMIUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
Shank Diameter0.183 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
MaterialSTEEL
Thread DirectionRIGHT-HAND STUD THREAD
Thread Quantity Per Inch24 STUD THREAD
Hardness Rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5133-00-189-9293 INTERCHANGEABLE
Drill,twist
5110-00-234-6560 INTERCHANGEABLE
File,hand
4810-00-332-802712248 INTERCHANGEABLE
Sleeve and Slide,directional Con
Moog Inc
5307-00-695-733850-33A2 INTERCHANGEABLE
Stud,shouldered
Trailmobile Inc Sub of the Pullman Co
1560-00-771-239612248 INTERCHANGEABLE
Windshield
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5305-00-951-044412248 INTERCHANGEABLE
Screw,machine
Aerosonic Llc
5915-01-033-6951 INTERCHANGEABLE
Filter Assembly,electrical
3455-01-203-275012248 INTERCHANGEABLE
Trepanning Tool,machine
Hougen Manufacturing, Inc
6685-01-488-4736TT176NA1C INTERCHANGEABLE
Transmitter,temperature,electric
Minco Products Inc
5120-01-724-616712248 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
Cross-Reference Index
Part NumberManufacturer
12-248 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
12-248 Donallco Inc (USA)
Related Parts
5133-00-189-9293INTERCHANGEABLE
DRILL,TWIST
5110-00-234-6560INTERCHANGEABLE
FILE,HAND
4810-00-332-8027INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
12248
5307-00-695-7338INTERCHANGEABLE
STUD,SHOULDERED
50-33A2
1560-00-771-2396INTERCHANGEABLE
WINDSHIELD
12248
5305-00-951-0444INTERCHANGEABLE
SCREW,MACHINE
12248
5915-01-033-6951INTERCHANGEABLE
FILTER ASSEMBLY,ELECTRICAL
3455-01-203-2750INTERCHANGEABLE
TREPANNING TOOL,MACHINE
12248
6685-01-488-4736INTERCHANGEABLE
TRANSMITTER,TEMPERATURE,ELECTRIC
TT176NA1C
5120-01-724-6167INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
12248

Frequently Asked Questions

What is NSN 5307-00-298-7646?

NSN 5307-00-298-7646 is a Stud,stepped, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5307 (No Item Name Available). Status: active.

What are the part numbers for NSN 5307-00-298-7646?

NSN 5307-00-298-7646 has 2 cross-referenced part numbers: 12-248 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 12-248 (Donallco Inc).

What NSN replaces 5307-00-298-7646?

There are 10 known substitutes for 5307-00-298-7646: 5133-00-189-9293, 5110-00-234-6560, 4810-00-332-8027 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-248?

Key specifications for 12-248: Style Designator: STEPPED; Thread Class: 3A STUD THREAD A; Nominal Thread Size: 0.190 INCHES STUD THREAD IN; Thread Length: 0.312 INCHES MAXIMUM STUD THREAD IN. 12 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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