Product Details | HEXAGON HEAD CAP SCREW

5305-00-021-5912 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: M21428, DX599D, FFS85, 743598Z2, 7435-98Z2, 912789, 92134, 0912789, 09127895, 0912789-5, 11X121, 13K10, 1AX16, 1X41, 202791, 215912, 25S54, 381, 3998, S2X1, 5305-00-021-5912, 00-021-5912, 5305000215912, 000215912

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-021-5912

Drawings & Photos | NSN 5305-00-021-5912


Demand History | NSN 5305-00-021-5912

Part Number Request Date QTY Origin
202791 2017-09-249 4 Italy
202791 2016-11-316 2 Italy
202791 2016-11-314 1 Italy
FFS85 2013-01-11 473 US
381 2012-07-204 1 United States
FFS85 2011-10-280 95 United States
FFS85 2011-09-265 14 US
FFS85 2010-03-84 100 US
FFS85 2010-02-43 10 United States
FFS85 2009-09-272 50 US
3998 2009-09-247 1 Philippines

Cross Reference | NSN 5305-00-021-5912

Part Number Cage Code Manufacturer
0912789 92392 ALLIS-CHALMERS CORP
0912789-5 92392 ALLIS-CHALMERS CORP
11X121 58275 SASCO INC CANADIAN DIV
13K10 08645 BRIGGS AND STRATTON CORP
1AX16 76040 MACK TRUCKS INC PARTS OPN
1X41 83120 PRESSED METALS OF AMERICA INC
202791 02978 L-3 COMMUNICATIONS CORPORATION DBA COMBAT PROPULSION SYSTEMS
215912 24617 GENERAL MOTORS CORP
215912 7X677 GENERAL MOTORS LLC DBA GENERAL MOTORS
25S54 06840 BENDIX CORP THE
381 26536 DRESSER INDUSTRIES INC P AND M MFG DIV
3998 23382 FWD SEAGRAVE HOLDINGS, LP DIV FWD SEAGRAVE HOLDINGS, LP
7435-98Z2 52793 SAGINAW PRODUCTS CORPORATION DBA CIGNYS
912789 92392 ALLIS-CHALMERS CORP
92134 08645 BRIGGS AND STRATTON CORP
92134 27996 HEIL ENVIRONMENTAL INDUSTRIES
DX599D 56442 DIAMOND REO TRUCK CO
FFS85 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
M21428 61038 VICKERS INC
S2X1 65282 WHITE MOTOR CORP

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Technical Data | NSN 5305-00-021-5912

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.750 INCHES MINIMUM
FASTENER LENGTH 0.750 INCHES NOMINAL
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 23.0 ROCKWELL B MINIMUM AND 80.0 ROCKWELL B MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 74000 POUNDS PER SQUARE INCH
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 0.188 INCHES NOMINAL
WIDTH BETWEEN FLATS 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
SURFACE FINISH 125.0 MICROINCHES BEARING SURFACE OF HEAD 63.0 MICROINCHES THREADS
NONDEFINITIVE SPEC/STD DATA 2 TYPE AND 1 STYLE AND 2 GRADE
DEPARTURE FROM CITED DESIGNATOR AS MODIFIED BY HEAD HEIGHT
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFS85

Restrictions/Controls & Freight Information | NSN 5305-00-021-5912

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.
Precious Metals Indicator Code:UPrecious metal type is unknown
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