Product Details | MACHINE SCREW

5305-00-591-3320 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Part Alternates: FFS92, 6121, 21027, 526032, 5305-00-591-3320, 00-591-3320, 5305005913320, 005913320

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-591-3320

Drawings & Photos | NSN 5305-00-591-3320


Demand History | NSN 5305-00-591-3320

Part Number Request Date QTY Origin
FFS92 2023-08-236 14 US
21027 2012-11-331 1 Singapore
FFS92 2011-02-49 5 US
FFS92 2011-02-49 50 US
FFS92 2010-11-323 165 US
FFS92 2009-12-338 100 US
FFS92 2009-10-292 50 United States
FFS92 2008-03-80 50 United States

Cross Reference | NSN 5305-00-591-3320

Part Number Cage Code Manufacturer
21027 77445 UNITED TECHNOLOGIES CORPORATION DBA PRATT WHITNEY-SPARE PARTS
526032 36378 RAYTHEON TECHNICAL SERVICES COMPANY
6121 36378 RAYTHEON TECHNICAL SERVICES COMPANY
FFS92 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5305-00-591-3320

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.190 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.312 INCHES MINIMUM
FASTENER LENGTH 0.312 INCHES NOMINAL
SCREW MATERIAL STEEL
SCREW MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENT CADMIUM
MINIMUM TENSILE STRENGTH 60000 POUNDS PER SQUARE INCH
HEAD STYLE A28 ROUND
HEAD DIAMETER 0.334 INCHES MINIMUM AND 0.359 INCHES MAXIMUM
HEAD HEIGHT 0.123 INCHES MINIMUM AND 0.137 INCHES MAXIMUM
INTERNAL DRIVE STYLE B10 SLOT
NONDEFINITIVE SPEC/STD DATA 1 TYPE AND 1S STYLE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFS92

Restrictions/Controls & Freight Information | NSN 5305-00-591-3320

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