PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31139Screw,machine

Barnes Group Inc. Dba Barnes Distribution · NSN 5305-01-146-1345 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-146-1345 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-146-1345. Primary manufacturer part number: 31139.
Features
  • Screw,machine — FSC 5305
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Fastener Length: 1.500 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Screw Surface Treatment: NICKEL
  • Head Diameter: 0.359 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Head Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-146-1345, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Barnes Group Inc. Dba Barnes Distribution. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN5305-01-146-1345
Primary Part Number31139
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerBarnes Group Inc. Dba Barnes Distribution
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Fastener Length1.500 INCHES NOMINAL IN
Thread Class2A A
Screw Surface TreatmentNICKEL
Head Diameter0.359 INCHES NOMINAL IN
Nominal Thread Diameter0.190 INCHES IN
Head StyleROUND
Head Height0.137 INCHES NOMINAL IN
Internal Drive StyleSLOT
Thread Quantity Per Inch24
Thread DirectionRIGHT-HAND
Thread Length1.500 INCHES NOMINAL IN
Screw MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-065-4835DH37D-6 INTERCHANGEABLE
Seal,plain Encased
Siemens Energy, Inc.
5133-00-841-8617 INTERCHANGEABLE
Drill,twist
2530-00-845-924917649 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
4710-01-031-412831139 INTERCHANGEABLE
Tube Assembly,metal
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5310-01-358-72371791914 INTERCHANGEABLE
Nut,plain,hexagon
Chrysler Realty Company Llc Dba Daimler Chrysler
4730-01-451-497531139 INTERCHANGEABLE
Strainer Element,sediment
The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C
5305-01-633-874931139 INTERCHANGEABLE
Screw,tapping
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
31139 PRIMARY Barnes Group Inc. Dba Barnes Distribution (USA)
Related Parts
5330-00-065-4835INTERCHANGEABLE
SEAL,PLAIN ENCASED
DH37D-6
5133-00-841-8617INTERCHANGEABLE
DRILL,TWIST
2530-00-845-9249INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
17649
4710-01-031-4128INTERCHANGEABLE
TUBE ASSEMBLY,METAL
31139
5310-01-358-7237INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1791914
4730-01-451-4975INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
31139
5305-01-633-8749INTERCHANGEABLE
SCREW,TAPPING
31139

Frequently Asked Questions

What is NSN 5305-01-146-1345?

NSN 5305-01-146-1345 is a Screw,machine, manufactured by Barnes Group Inc. Dba Barnes Distribution, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-146-1345?

NSN 5305-01-146-1345 has 1 cross-referenced part number: 31139 (Barnes Group Inc. Dba Barnes Distribution).

What NSN replaces 5305-01-146-1345?

There are 7 known substitutes for 5305-01-146-1345: 5330-00-065-4835, 5133-00-841-8617, 2530-00-845-9249 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31139?

Key specifications for 31139: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Fastener Length: 1.500 INCHES NOMINAL IN; Thread Class: 2A A; Screw Surface Treatment: NICKEL. 13 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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