Product Details | CLOSE TOLERANCE SCREW

5305-01-409-2873 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part Alternates: NAS1580A4T5X, 5305-01-409-2873, 01-409-2873, 5305014092873, 014092873

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 08 MAR 1995 01-409-2873

Drawings & Photos | NSN 5305-01-409-2873


Demand History | NSN 5305-01-409-2873

Part Number Request Date QTY Origin
5305-01-409-2873 2024-01-05 4734 US
5305-01-409-2873 2024-01-04 4734 DIBBS
5305-01-409-2873 2023-12-346 3519 DIBBS
5305-01-409-2873 2023-10-299 153 DIBBS
5305-01-409-2873 2023-10-291 153 DIBBS
5305-01-409-2873 2023-04-116 534 DIBBS
5305-01-409-2873 2023-04-108 534 DIBBS
5305-01-409-2873 2023-03-73 2031 DIBBS
5305-01-409-2873 2023-01-05 5372 DIBBS
5305-01-409-2873 2022-08-227 3208 DIBBS
5305-01-409-2873 2021-09-251 324 DIBBS
5305-01-409-2873 2021-08-236 324 DIBBS
NAS1580A4T5X 2009-05-140 6 US

Cross Reference | NSN 5305-01-409-2873

Part Number Cage Code Manufacturer
NAS1580A4T5X 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5305-01-409-2873

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.2500 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.403 INCHES NOMINAL
FASTENER LENGTH 0.700 INCHES MINIMUM AND 0.730 INCHES MAXIMUM
MATERIAL STEEL OVERALL
SURFACE TREATMENT CADMIUM OVERALL
HEAD STYLE C50 FLAT COUNTERSUNK
HEAD DIAMETER 0.464 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
GRIP LENGTH 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
GRIP DIAMETER 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5305-01-409-2873

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information