PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10-91243-5Screw,machine

Unison Industries Llc · NSN 5305-00-999-7105 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-999-7105 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-999-7105. Primary manufacturer part number: 10-91243-5.
Features
  • Screw,machine — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Head Height: 0.091 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
  • Head Style: ROUND
  • Screw Material: STEEL
  • Nominal Thread Diameter: 0.138 INCHES IN
  • Head Diameter: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-999-7105, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Unison Industries Llc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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: Active.

Technical Specifications
ParameterValue
NSN5305-00-999-7105
Primary Part Number10-91243-5
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerUnison Industries Llc
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head Height0.091 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
Head StyleROUND
Screw MaterialSTEEL
Nominal Thread Diameter0.138 INCHES IN
Head Diameter0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Thread Class2A A
Minimum Tensile Strength60 POUNDS PER SQUARE INCH LBS
Screw Surface Treatment Document and Classification9-3026 FSCM 77892 ASSN STD ALL TREATMENT RESPONSES
Fastener Length0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Internal Drive StyleSLOT
Screw Material Document and ClassificationQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE
Thread Length0.312 INCHES MAXIMUM IN
Screw Surface TreatmentCADMIUM AND CHROMATE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-984-4984MS35206-227 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
10-91243-5 Amphenol Corp Div Amphenol Aerospace Operations (USA)
10-91243-5 Satair A/s (DNK)
10-91243-5 PRIMARY Unison Industries Llc (USA)
Related Parts
5305-00-984-4984INTERCHANGEABLE
SCREW,MACHINE
MS35206-227

Frequently Asked Questions

What is NSN 5305-00-999-7105?

NSN 5305-00-999-7105 is a Screw,machine, manufactured by Unison Industries Llc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-999-7105?

NSN 5305-00-999-7105 has 3 cross-referenced part numbers: 10-91243-5 (Amphenol Corp Div Amphenol Aerospace Operations), 10-91243-5 (Satair A/s), 10-91243-5 (Unison Industries Llc).

What NSN replaces 5305-00-999-7105?

There is 1 known substitute for 5305-00-999-7105: 5305-00-984-4984. Verify interchangeability with system specifications before substitution.

What are the specifications of 10-91243-5?

Key specifications for 10-91243-5: Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Head Height: 0.091 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN; Head Style: ROUND. 16 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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