NSN 5305-01-251-1643 MS1699856L, MS16998-56L, FFS86
Product Details | SOCKET HEAD CAP SCREW
5305-01-251-1643 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: MS1699856L, MS16998-56L, FFS86, FF-S-86, 5305-01-251-1643, 01-251-1643, 5305012511643, 012511643
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 01-251-1643 | 16282 ( SCREW, CAP, SOCKET HEAD ) |
Drawings & Photos | NSN 5305-01-251-1643
Demand History | NSN 5305-01-251-1643
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| FFS86 | 2022-05-143 | 40 | United States |
| FFS86 | 2021-12-347 | 40 | US |
| FFS86 | 2013-08-229 | 80 | Canada |
| FFS86 | 2012-03-74 | 2 | US |
| FFS86 | 2011-08-222 | 50 | US |
| FFS86 | 2011-08-214 | 50 | US |
| FFS86 | 2011-03-61 | 8 | US |
| FFS86 | 2011-03-60 | 5000 | US |
| MS1699856L | 2009-09-245 | 8600 | United States |
Cross Reference | NSN 5305-01-251-1643
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| LK21262-38 | 26304 | TORKON FASTENER CORP |
| MS21262-38 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES |
| MS21262-38 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS |
| NAS1351-5LN10P | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES |
| TN1351-5LN10P | 26304 | TORKON FASTENER CORP |
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Technical Data | NSN 5305-01-251-1643
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.511 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| FASTENER LENGTH | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 150000 POUNDS PER SQUARE INCH |
| HEAD STYLE | C49 FLAT CHAMFER |
| HEAD DIAMETER | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |
| HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | D5 HEXAGON |
| WIDTH ACROSS FLATS | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM |
| LOCKING FEATURE | PATCH OR STRIP THREADS |
| NONDEFINITIVE SPEC/STD DATA | 6 TYPE |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-86 |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS16998-56L |
Restrictions/Controls & Freight Information | NSN 5305-01-251-1643
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||