PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JH3-38Screw,machine

Sigma Tek, Inc. · NSN 5305-00-050-4062 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-050-4062 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-050-4062. Primary manufacturer part number: JH3-38.
Features
  • Screw,machine — FSC 5305
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Screw Material: STEEL COMP 303
  • Internal Drive Style: SLOT
  • Thread Length: 0.688 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
  • Head Height: 0.118 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-050-4062, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sigma Tek, Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-050-4062
Primary Part NumberJH3-38
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerSigma Tek, Inc.
StatusCANCELLED
Nominal Thread Diameter0.190 INCHES IN
Screw MaterialSTEEL COMP 303
Internal Drive StyleSLOT
Thread Length0.688 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Head Height0.118 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Thread DirectionRIGHT-HAND
Screw Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
Head Diameter0.292 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
Thread Class2A A
Thread Series DesignatorUNF
Head StyleFILLISTER
Fastener Length0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
7690-00-400-7996 INTERCHANGEABLE
Marker,identification
Cross-Reference Index
Part NumberManufacturer
JH3-38 PRIMARY Sigma Tek, Inc. (USA)
504062 CAGE 00000
JH3-38 Lucas Aerospace Power Equipment Corporation (USA)
FFS92TYPE1STYLE4S Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
7690-00-400-7996INTERCHANGEABLE
MARKER,IDENTIFICATION

Frequently Asked Questions

What is NSN 5305-00-050-4062?

NSN 5305-00-050-4062 is a Screw,machine, manufactured by Sigma Tek, Inc., classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-050-4062?

NSN 5305-00-050-4062 has 4 cross-referenced part numbers: JH3-38 (Sigma Tek, Inc.), 504062, JH3-38 (Lucas Aerospace Power Equipment Corporation), FFS92TYPE1STYLE4S (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5305-00-050-4062?

There is 1 known substitute for 5305-00-050-4062: 7690-00-400-7996. Verify interchangeability with system specifications before substitution.

What are the specifications of JH3-38?

Key specifications for JH3-38: Nominal Thread Diameter: 0.190 INCHES IN; Screw Material: STEEL COMP 303; Internal Drive Style: SLOT; Thread Length: 0.688 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-050-4062 still in active supply?

NSN 5305-00-050-4062 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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