PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

237-4Stud,plain

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 5307-00-206-7901 · FSC 5307 · No Item Name Available
Verified by PartsTable
NSN 5307-00-206-7901 — this item is cataloged by the U.S. Government under National Stock Number 5307-00-206-7901. Primary manufacturer part number: 237-4.
Features
  • Stud,plain — FSC 5307
  • Thread Class: 3A NUT THREAD A
  • Thread Series Designator: UNF NUT THREAD
  • Thread Quantity Per Inch: 28 NUT THREAD
  • Nominal Thread Size: 0.250 INCHES STUD THREAD IN
  • Thread Length: 0.500 INCHES MAXIMUM NUT THREAD IN
  • Surface Treatment: CADMIUM OVERALL
  • Thread Length: 0.500 INCHES MAXIMUM STUD THREAD IN
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Stud,plain, cataloged under National Stock Number 5307-00-206-7901, 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 16 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5307-00-206-7901
Primary Part Number237-4
Item NameStud,plain
FSC / FSG5307 / 53 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Thread Class3A NUT THREAD A
Thread Series DesignatorUNF NUT THREAD
Thread Quantity Per Inch28 NUT THREAD
Nominal Thread Size0.250 INCHES STUD THREAD IN
Thread Length0.500 INCHES MAXIMUM NUT THREAD IN
Surface TreatmentCADMIUM OVERALL
Thread Length0.500 INCHES MAXIMUM STUD THREAD IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
Thread DirectionRIGHT-HAND NUT THREAD
Thread Quantity Per Inch20 STUD THREAD
Distance From Cotter Pin Hole Centerline to Nut End0.094 INCHES NOMINAL FIRST HOLE IN
Cotter Pin Hole Diameter0.076 INCHES NOMINAL FIRST HOLE IN
Thread DirectionRIGHT-HAND STUD THREAD
Hardness Rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
Nominal Thread Size0.250 INCHES NUT THREAD IN
Thread Pitch Diameters+0.2201 TO 0.2214 INCHES STUD THREAD IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-3874358-35 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
5305-00-151-1885132760 INTERCHANGEABLE
Screw,machine
Borgwarner Pds (anderson), L.l.c.
5340-00-200-48182374 INTERCHANGEABLE
Bumper
Atlantic India Rubber Co Inc
2940-00-421-7182231847 INTERCHANGEABLE
Filter Element,intake Air Cleane
Kohler Co Engine Plant Div
4820-00-487-30542374 INTERCHANGEABLE
Parts Kit,ball Valve
Badger Fire Protection Inc
5120-00-620-92335090 INTERCHANGEABLE
Mirror,inspection
Gc/waldom Inc
2815-00-886-82072374 INTERCHANGEABLE
Valve,poppet,engine
Trw Inc Trw Intl Trade Government Sales Dept
5330-00-909-20022374 INTERCHANGEABLE
Gasket,spiral Wound
Velan Valve Corp.
5340-00-933-81692374 INTERCHANGEABLE
Standoff,threaded,spacing
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5815-00-976-1214 INTERCHANGEABLE
Arm
Cross-Reference Index
Part NumberManufacturer
237-4 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
237-4 Donallco Inc (USA)
Related Parts
3110-00-100-3874INTERCHANGEABLE
BEARING,ROLLER,TAPERED
358-35
5305-00-151-1885INTERCHANGEABLE
SCREW,MACHINE
132760
5340-00-200-4818INTERCHANGEABLE
BUMPER
2374
2940-00-421-7182INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
231847
4820-00-487-3054INTERCHANGEABLE
PARTS KIT,BALL VALVE
2374
5120-00-620-9233INTERCHANGEABLE
MIRROR,INSPECTION
5090
2815-00-886-8207INTERCHANGEABLE
VALVE,POPPET,ENGINE
2374
5330-00-909-2002INTERCHANGEABLE
GASKET,SPIRAL WOUND
2374
5340-00-933-8169INTERCHANGEABLE
STANDOFF,THREADED,SPACING
2374
5815-00-976-1214INTERCHANGEABLE
ARM
5120-00-994-3803INTERCHANGEABLE
PULLER,MECHANICAL
HS8173
5306-01-140-4654INTERCHANGEABLE
BOLT,U
237DP4STS

Frequently Asked Questions

What is NSN 5307-00-206-7901?

NSN 5307-00-206-7901 is a Stud,plain, 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 5307-00-206-7901?

NSN 5307-00-206-7901 has 2 cross-referenced part numbers: 237-4 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 237-4 (Donallco Inc).

What NSN replaces 5307-00-206-7901?

There are 12 known substitutes for 5307-00-206-7901: 3110-00-100-3874, 5305-00-151-1885, 5340-00-200-4818 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 237-4?

Key specifications for 237-4: Thread Class: 3A NUT THREAD A; Thread Series Designator: UNF NUT THREAD; Thread Quantity Per Inch: 28 NUT THREAD; Nominal Thread Size: 0.250 INCHES STUD THREAD IN. 17 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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