PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10378Screw,machine

Kleinschmidt Inc · NSN 5305-00-579-5443 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-579-5443 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-579-5443. Primary manufacturer part number: 10378.
Features
  • Screw,machine — FSC 5305
  • Countersink Angle: 100.0 DEGREES NOMINAL
  • Head Diameter: 0.257 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
  • Fastener Length: 0.250 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.138 INCHES IN
  • Screw Material: COPPER ALLOY
  • Thread Quantity Per Inch: 32
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-579-5443, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kleinschmidt Inc. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-579-5443
Primary Part Number10378
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerKleinschmidt Inc
StatusACTIVE
Countersink Angle100.0 DEGREES NOMINAL
Head Diameter0.257 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
Fastener Length0.250 INCHES NOMINAL IN
Nominal Thread Diameter0.138 INCHES IN
Screw MaterialCOPPER ALLOY
Thread Quantity Per Inch32
Internal Drive StyleCROSS RECESS TYPE 1
Screw Surface TreatmentNICKEL
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head StyleFLAT COUNTERSUNK UNDERCUT
Thread DirectionRIGHT-HAND
Thread Length0.095 INCHES MINIMUM IN
Head Height0.051 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5945-00-011-304610378 INTERCHANGEABLE
Solenoid,electrical
Astronautics Corporation of America
5996-00-097-629510378 INTERCHANGEABLE
Amplifier,magnetic
Torotel, Inc. Div Torotel Products, Inc.
5905-00-107-891510378 INTERCHANGEABLE
Resistor,adjustable
Cae Usa Inc.
5310-00-216-7985SK139880 INTERCHANGEABLE
Nut,plain,round
Curtiss-Wright Electro-Mechanical Corporation Div Epd
3040-00-338-4467SC-B-69622 INTERCHANGEABLE
Bracket,eye,nonrotating Shaft
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-496-7190577R894H39 INTERCHANGEABLE
Coil,radio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6115-00-991-1959 INTERCHANGEABLE
Exciter,static Regulator
3110-01-280-6453 INTERCHANGEABLE
Ball,bearing
5975-01-436-413610378 INTERCHANGEABLE
Tray,mounting,electronic Equipme
Hollingsead International, Llc
5365-01-482-800710378 INTERCHANGEABLE
Shim
Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
10378 Kleinschmidt Inc (USA)
Related Parts
5945-00-011-3046INTERCHANGEABLE
SOLENOID,ELECTRICAL
10378
5996-00-097-6295INTERCHANGEABLE
AMPLIFIER,MAGNETIC
10378
5905-00-107-8915INTERCHANGEABLE
RESISTOR,ADJUSTABLE
10378
5310-00-216-7985INTERCHANGEABLE
NUT,PLAIN,ROUND
SK139880
3040-00-338-4467INTERCHANGEABLE
BRACKET,EYE,NONROTATING SHAFT
SC-B-69622
5950-00-496-7190INTERCHANGEABLE
COIL,RADIO FREQUENCY
577R894H39
6115-00-991-1959INTERCHANGEABLE
EXCITER,STATIC REGULATOR
3110-01-280-6453INTERCHANGEABLE
BALL,BEARING
5975-01-436-4136INTERCHANGEABLE
TRAY,MOUNTING,ELECTRONIC EQUIPME
10378
5365-01-482-8007INTERCHANGEABLE
SHIM
10378
5340-01-518-5034INTERCHANGEABLE
KEYSHAFT ASSEMBLY CLAMP
10378
6635-01-535-4515INTERCHANGEABLE
TESTER,TORQUE,WRENCH AND TENSIOM
10378

Frequently Asked Questions

What is NSN 5305-00-579-5443?

NSN 5305-00-579-5443 is a Screw,machine, manufactured by Kleinschmidt Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-579-5443?

NSN 5305-00-579-5443 has 1 cross-referenced part number: 10378 (Kleinschmidt Inc).

What NSN replaces 5305-00-579-5443?

There are 12 known substitutes for 5305-00-579-5443: 5945-00-011-3046, 5996-00-097-6295, 5905-00-107-8915 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10378?

Key specifications for 10378: Countersink Angle: 100.0 DEGREES NOMINAL; Head Diameter: 0.257 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN; Fastener Length: 0.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.138 INCHES IN. 14 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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