Product Details | HEXAGON HEAD CAP SCREW

5305-01-292-1389 An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY; BOLT,INTERNAL WRENCHING; and SCREW,CAP,SOCKET HEAD.

Part Alternates: MILDTL1222, MIL-DTL-1222, MILS1222, MIL-S-1222, 1/4 20UNC-2AX5/8 LG GR 5 ZN, 1420UNC2AX58LGGR5ZN, 5305-01-292-1389, 01-292-1389, 5305012921389, 012921389

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 11-JAN-89 01-292-1389

Drawings & Photos | NSN 5305-01-292-1389


Demand History | NSN 5305-01-292-1389

Part Number Request Date QTY Origin
MILDTL1222 2025-03-72 40 United States
MILDTL1222 2025-02-49 40 United States
MILS1222 2025-01-22 8 United States
MILS1222 2025-01-22 8 United States
MILDTL1222 2023-06-159 12 United States
MILS1222 2015-03-89 3000 BH
MILS1222 2014-08-230 1 US
5305-01-292-1389 2014-07-204 34 DIBBS
5305-01-292-1389 2013-10-288 17 DIBBS
MILDTL1222 2013-06-169 59 US
MILS1222 2012-07-209 4 United States
5305-01-292-1389 2012-07-205 15 DIBBS
5305-01-292-1389 2012-04-111 15 DIBBS
MILS1222 2012-03-74 1 US
5305-01-292-1389 2012-02-46 7 DIBBS
5305-01-292-1389 2011-12-339 21 DIBBS
5305-01-292-1389 2011-11-325 7 DIBBS
MILS1222 2011-02-49 3 US
MILS1222 2011-02-49 4 US
MILS1222 2011-02-49 5 US
MILS1222 2011-02-49 10 US
MILS1222 2011-02-49 18 US
MILS1222 2011-02-49 35 US
MILS1222 2011-02-49 40 US
MILS1222 2011-02-49 42 US
MILS1222 2011-02-49 185 US
MILS1222 2011-02-49 195 US
5305-01-292-1389 2010-06-165 7 DIBBS
5305-01-292-1389 2009-09-244 7 DIBBS
5305-01-292-1389 2008-08-229 2 DIBBS

Cross Reference | NSN 5305-01-292-1389

Part Number Cage Code Manufacturer
1/4 20UNC-2AX5/8 LG GR 5 ZN 80204 AMERICAN NATIONAL STANDARDS INSTITUTE, INCORPORATED
MIL-DTL-1222 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-S-1222 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5305-01-292-1389

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.495 INCHES MINIMUM AND 0.645 INCHES MAXIMUM
FASTENER LENGTH 0.595 INCHES MINIMUM AND 0.645 INCHES MAXIMUM
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE J429 GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ZINC AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION ASTM B633 TY 2 CL FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING 23.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 150000 POUNDS PER SQUARE INCH
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM
WIDTH BETWEEN FLATS 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA 1 TYPE OR 5 GRADE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-S-1222

Restrictions/Controls & Freight Information | NSN 5305-01-292-1389

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
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.
Category Code Description
No Freight Information