PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILS7839Screw,machine

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-182-1344 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-182-1344 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-182-1344. Primary manufacturer part number: MILS7839.
Features
  • Screw,machine — FSC 5305
  • Screw Material Document and Classification: AMS 6300 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE
  • Countersink Angle: 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
  • Thread Quantity Per Inch: 32
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Class: 3A A
  • Head Style: FLAT COUNTERSUNK
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-182-1344, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5305-00-182-1344
Primary Part NumberMILS7839
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Screw Material Document and ClassificationAMS 6300 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE
Countersink Angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
Thread Quantity Per Inch32
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Class3A A
Head StyleFLAT COUNTERSUNK
Nominal Thread Diameter0.190 INCHES IN
Screw MaterialSTEEL COMP 4037 OR STEEL COMP 8630
Thread Length0.312 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
Head Diameter0.327 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Internal Drive StyleCROSS RECESS TYPE 1
Fastener Length0.453 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Screw Surface TreatmentCADMIUM AND CHROMATE
Screw Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5305-00-719-5401MS24694-S49 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MILS7839 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AN509-10R7 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5305-00-719-5401INTERCHANGEABLE
SCREW,MACHINE
MS24694-S49

Frequently Asked Questions

What is NSN 5305-00-182-1344?

NSN 5305-00-182-1344 is a Screw,machine, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-182-1344?

NSN 5305-00-182-1344 has 2 cross-referenced part numbers: MILS7839 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AN509-10R7 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5305-00-182-1344?

There is 1 known substitute for 5305-00-182-1344: 5305-00-719-5401. Verify interchangeability with system specifications before substitution.

What are the specifications of MILS7839?

Key specifications for MILS7839: Screw Material Document and Classification: AMS 6300 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE; Countersink Angle: 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM; Thread Quantity Per Inch: 32; Thread Direction: RIGHT-HAND. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-182-1344 still in active supply?

NSN 5305-00-182-1344 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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