PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

123104Setscrew

Astronautics Corporation of America · NSN 5305-01-042-7539 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-042-7539 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-042-7539. Primary manufacturer part number: 123104.
Features
  • Setscrew — FSC 5305
  • Head Height: 0.310 INCHES NOMINAL IN
  • Thread Length: 1.250 INCHES NOMINAL IN
  • Point Diameter: 0.187 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Fastener Length: 2.810 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Width Between Flats: 0.500 INCHES NOMINAL IN
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Setscrew, cataloged under National Stock Number 5305-01-042-7539, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Astronautics Corporation of America. Government technical data includes 10 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-042-7539
Primary Part Number123104
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAstronautics Corporation of America
StatusACTIVE
Head Height0.310 INCHES NOMINAL IN
Thread Length1.250 INCHES NOMINAL IN
Point Diameter0.187 INCHES NOMINAL IN
Head StyleHEXAGON
Fastener Length2.810 INCHES NOMINAL IN
Thread Class2A A
Width Between Flats0.500 INCHES NOMINAL IN
Point Length0.750 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Point StyleDOG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4310-00-358-3728123-0104 INTERCHANGEABLE
Breather
Cummins Power Generation Inc.
5815-00-859-6446 INTERCHANGEABLE
Printer Assembly
6610-01-127-0190123-104 INTERCHANGEABLE
Housing Assy
Avionics Specialties, Inc.
4320-01-219-4240123104 INTERCHANGEABLE
Sleeve,shaft,pump
Curtiss-Wright Electro-Mechanical Corporation Div Epd
Cross-Reference Index
Part NumberManufacturer
123104 PRIMARY Astronautics Corporation of America (USA)
Related Parts
4310-00-358-3728INTERCHANGEABLE
BREATHER
123-0104
5815-00-859-6446INTERCHANGEABLE
PRINTER ASSEMBLY
6610-01-127-0190INTERCHANGEABLE
HOUSING ASSY
123-104
4320-01-219-4240INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
123104

Frequently Asked Questions

What is NSN 5305-01-042-7539?

NSN 5305-01-042-7539 is a Setscrew, manufactured by Astronautics Corporation of America, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-042-7539?

NSN 5305-01-042-7539 has 1 cross-referenced part number: 123104 (Astronautics Corporation of America).

What NSN replaces 5305-01-042-7539?

There are 4 known substitutes for 5305-01-042-7539: 4310-00-358-3728, 5815-00-859-6446, 6610-01-127-0190 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 123104?

Key specifications for 123104: Head Height: 0.310 INCHES NOMINAL IN; Thread Length: 1.250 INCHES NOMINAL IN; Point Diameter: 0.187 INCHES NOMINAL IN; Head Style: HEXAGON. 10 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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