PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10-86542Screw,machine

Unison Industries Llc · NSN 5305-00-638-3477 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-638-3477 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-638-3477. Primary manufacturer part number: 10-86542.
Features
  • Screw,machine — FSC 5305
  • Head Style: HEXAGON
  • Width Between Flats: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Thread Class: 3A A
  • Thread Length: 0.234 INCHES MINIMUM IN
  • Nominal Thread Diameter: 0.164 INCHES IN
  • Head Height: 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
  • 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 5305-00-638-3477, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-638-3477
Primary Part Number10-86542
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerUnison Industries Llc
StatusCANCELLED
Head StyleHEXAGON
Width Between Flats0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Thread Class3A A
Thread Length0.234 INCHES MINIMUM IN
Nominal Thread Diameter0.164 INCHES IN
Head Height0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Minimum Tensile Strength100000 POUNDS PER SQUARE INCH LBS
Hardness Rating19.0 ROCKWELL C MINIMUM AND 24.0 ROCKWELL C MAXIMUM
Internal Drive StyleCROSS RECESS TYPE 1
Thread Quantity Per Inch32
Screw Material Document and ClassificationQQ-S-763 FED SPEC ALL MATERIAL RESPONSES
Screw Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
Fastener Length0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
Screw MaterialSTEEL COMP 410 OR STEEL COMP 416
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Screw Surface TreatmentPASSIVATE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5985-01-078-3681 INTERCHANGEABLE
Circulator,radio Frequency
4330-01-387-1574 INTERCHANGEABLE
Filter
5325-01-388-741400183 INTERCHANGEABLE
Grommet,nonmetallic
Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco
5365-01-570-399800183 INTERCHANGEABLE
Bushing Blank
Tech Products Corp
Cross-Reference Index
Part NumberManufacturer
00183 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
10-86542 PRIMARY Unison Industries Llc (USA)
10-86542 Amphenol Corp Div Amphenol Aerospace Operations (USA)
10-86542 Teledyne Industries Inc Teledyne Power Systems Div (USA)
Related Parts
5985-01-078-3681INTERCHANGEABLE
CIRCULATOR,RADIO FREQUENCY
4330-01-387-1574INTERCHANGEABLE
FILTER
5325-01-388-7414INTERCHANGEABLE
GROMMET,NONMETALLIC
00183
5365-01-570-3998INTERCHANGEABLE
BUSHING BLANK
00183

Frequently Asked Questions

What is NSN 5305-00-638-3477?

NSN 5305-00-638-3477 is a Screw,machine, manufactured by Unison Industries Llc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-638-3477?

NSN 5305-00-638-3477 has 4 cross-referenced part numbers: 00183 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 10-86542 (Unison Industries Llc), 10-86542 (Amphenol Corp Div Amphenol Aerospace Operations), 10-86542 (Teledyne Industries Inc Teledyne Power Systems Div).

What NSN replaces 5305-00-638-3477?

There are 4 known substitutes for 5305-00-638-3477: 5985-01-078-3681, 4330-01-387-1574, 5325-01-388-7414 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10-86542?

Key specifications for 10-86542: Head Style: HEXAGON; Width Between Flats: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Thread Class: 3A A; Thread Length: 0.234 INCHES MINIMUM IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-638-3477 still in active supply?

NSN 5305-00-638-3477 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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