PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12A7055Stud,plain

Napco International Llc Dba Napco International Inc · NSN 5307-00-285-3901 · FSC 5307 · No Item Name Available
Verified by PartsTable
NSN 5307-00-285-3901 — this item is cataloged by the U.S. Government under National Stock Number 5307-00-285-3901. Primary manufacturer part number: 12A7055.
Features
  • Stud,plain — FSC 5307
  • Thread Quantity Per Inch: 13 STUD THREAD
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) STUD THREAD
  • Nominal Thread Size: 0.500 INCHES NUT THREAD IN
  • Thread Length: 0.875 INCHES MAXIMUM STUD THREAD IN
  • Thread Quantity Per Inch: 20 NUT THREAD
  • Thread Length: 0.688 INCHES MAXIMUM NUT THREAD IN
  • Thread Direction: RIGHT-HAND NUT THREAD
Applications
  • Applications requiring Steel construction
General Description

The Stud,plain, cataloged under National Stock Number 5307-00-285-3901, is classified within Federal Supply Class 5307 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5307-00-285-3901
Primary Part Number12A7055
Item NameStud,plain
FSC / FSG5307 / 53 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusCANCELLED
Thread Quantity Per Inch13 STUD THREAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
Nominal Thread Size0.500 INCHES NUT THREAD IN
Thread Length0.875 INCHES MAXIMUM STUD THREAD IN
Thread Quantity Per Inch20 NUT THREAD
Thread Length0.688 INCHES MAXIMUM NUT THREAD IN
Thread DirectionRIGHT-HAND NUT THREAD
Thread DirectionRIGHT-HAND STUD THREAD
Nominal Thread Size0.500 INCHES STUD THREAD IN
Thread Series DesignatorUNF NUT THREAD
MaterialSTEEL
Thread Class2A NUT THREAD A
Thread Class2A STUD THREAD A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-00-285-51238329823 INTERCHANGEABLE
Gasket
U S Army Tank Automotive Command Amsta-Im-Mm
5330-01-261-9475 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
4X509 Kaitlin Corp (USA)
2066163 General Motors Corp (USA)
12A7055 PRIMARY Napco International Llc Dba Napco International Inc (USA)
BB5134 Diamond Reo Truck Co (USA)
P2453 Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co (USA)
145024 White Motor Corp (USA)
4ZDK0237 PRIMARY Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
4X509 Corbitt Co Inc (USA)
7373914 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
P2453 Koehring Co Lorain Div (USA)
4X509 PRIMARY Meritor Heavy Vehicle Systems, Llc (USA)
2066163 General Motors Llc Dba General Motors Llc (USA)
Related Parts
5330-00-285-5123INTERCHANGEABLE
GASKET
8329823
5330-01-261-9475INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 5307-00-285-3901?

NSN 5307-00-285-3901 is a Stud,plain, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 5307 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5307-00-285-3901?

NSN 5307-00-285-3901 has 12 cross-referenced part numbers: 4X509 (Kaitlin Corp), 2066163 (General Motors Corp), 12A7055 (Napco International Llc Dba Napco International Inc), BB5134 (Diamond Reo Truck Co), P2453 (Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co) and 7 more.

What NSN replaces 5307-00-285-3901?

There are 2 known substitutes for 5307-00-285-3901: 5330-00-285-5123, 5330-01-261-9475. Verify interchangeability with system specifications before substitution.

What are the specifications of 12A7055?

Key specifications for 12A7055: Thread Quantity Per Inch: 13 STUD THREAD; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) STUD THREAD; Nominal Thread Size: 0.500 INCHES NUT THREAD IN; Thread Length: 0.875 INCHES MAXIMUM STUD THREAD IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5307-00-285-3901 still in active supply?

NSN 5307-00-285-3901 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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