Product Details | MACHINE SCREW

5305-01-597-1637 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Part Alternates: 16112024, 1611202-4, 5305-01-597-1637, 01-597-1637, 5305015971637, 015971637

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 31 MAY 2011 01-597-1637

Cross Reference | NSN 5305-01-597-1637

Part Number Cage Code Manufacturer
1611202-4 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT

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Technical Data | NSN 5305-01-597-1637

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
FASTENER LENGTH 0.625 INCHES NOMINAL
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION FF-S-86, TY IV FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-Z-325, TY II, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE BUTTON
HEAD DIAMETER 0.437 INCHES NOMINAL
INTERNAL DRIVE STYLE HEXAGON
LOCKING FEATURE PATCH LOCKING FEATURE
III PART NAME ASSIGNED BY CONTROLLING AGENCY SCREW, SOCKET BUTTONHEAD, SELF-LOCKING

Restrictions/Controls & Freight Information | NSN 5305-01-597-1637

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