PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125178Screw,shoulder

Telemechanics Inc · NSN 5305-00-207-4213 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-207-4213 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-207-4213. Primary manufacturer part number: 125178.
Features
  • Screw,shoulder — FSC 5305
  • Shoulder Diameter: 0.188 INCHES NOMINAL FIRST SHOULDER IN
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Features Provided: CASEHARDENED
  • Head Style: FLAT CHAMFER
  • Shoulder Length: 0.250 INCHES NOMINAL FIRST SHOULDER IN
  • Thread Quantity Per Inch: 40
  • Head Diameter: 0.281 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,shoulder, cataloged under National Stock Number 5305-00-207-4213, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-207-4213
Primary Part Number125178
Item NameScrew,shoulder
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Shoulder Diameter0.188 INCHES NOMINAL FIRST SHOULDER IN
Internal Drive StyleCROSS RECESS TYPE 1
Features ProvidedCASEHARDENED
Head StyleFLAT CHAMFER
Shoulder Length0.250 INCHES NOMINAL FIRST SHOULDER IN
Thread Quantity Per Inch40
Head Diameter0.281 INCHES NOMINAL IN
Nominal Thread Diameter0.138 INCHES IN
Thread Class3A A
Thread Series DesignatorUNF
Shoulder ShapeROUND FIRST SHOULDER
Thread Length0.375 INCHES MINIMUM IN
Thread DirectionRIGHT-HAND
Head Height0.094 INCHES NOMINAL IN
Fastener Length0.625 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3110-00-198-1389ASTM F2431 INTERCHANGEABLE
Ring,bearing,inner
American Society for Testing and Materials Dba Astm International
5306-00-226-4844B1821BH031C475N INTERCHANGEABLE
Bolt,machine
American National Standards Institute Incorporated Dba American National Standards Institute
5930-00-329-63993-3224 INTERCHANGEABLE
Switch,sensitive
Maytag Corporation Dba Maytag Appliancessales
3825-00-831-375933224 INTERCHANGEABLE
Pad Mounting
Allianz Sweeper Company
5930-01-106-0622 INTERCHANGEABLE
Switch,push
Cross-Reference Index
Part NumberManufacturer
125178 PRIMARY Telemechanics Inc (USA)
33-224 American Telephone and Telegraph Co (USA)
33-224 Telemechanics Inc (USA)
Related Parts
3110-00-198-1389INTERCHANGEABLE
RING,BEARING,INNER
ASTM F2431
5306-00-226-4844INTERCHANGEABLE
BOLT,MACHINE
B1821BH031C475N
5930-00-329-6399INTERCHANGEABLE
SWITCH,SENSITIVE
3-3224
3825-00-831-3759INTERCHANGEABLE
PAD MOUNTING
33224
5930-01-106-0622INTERCHANGEABLE
SWITCH,PUSH

Frequently Asked Questions

What is NSN 5305-00-207-4213?

NSN 5305-00-207-4213 is a Screw,shoulder, manufactured by Telemechanics Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-207-4213?

NSN 5305-00-207-4213 has 3 cross-referenced part numbers: 125178 (Telemechanics Inc), 33-224 (American Telephone and Telegraph Co), 33-224 (Telemechanics Inc).

What NSN replaces 5305-00-207-4213?

There are 5 known substitutes for 5305-00-207-4213: 3110-00-198-1389, 5306-00-226-4844, 5930-00-329-6399 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 125178?

Key specifications for 125178: Shoulder Diameter: 0.188 INCHES NOMINAL FIRST SHOULDER IN; Internal Drive Style: CROSS RECESS TYPE 1; Features Provided: CASEHARDENED; Head Style: FLAT CHAMFER. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-207-4213 still in active supply?

NSN 5305-00-207-4213 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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