| Item Name | Screw Cap Hexagon Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-638-9853 (006389853) |
| NCB Code | USA (00) |
| Manufacturer | Met Pro Corporation, Prestolite Electric Inc, Federal Specifications |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.750 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 0.875 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQBC | MINIMUM TENSILE STRENGTH | 74000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 23.0 ROCKWELL B MINIMUM OVERALL AND 80.0 ROCKWELL B MAXIMUM OVERALL |
| CSYM | SURFACE FINISH | 125.0 MICROINCHES BEARING SURFACE OF HEAD |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL OR ZINC OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR QQ-Z-325,TY 2,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 1 STYLE AND 2 GRADE |
| Relevant Components for NSN - 5305-00-638-9853, 5305006389853 | ||||
| 5340-01-128-5602 (5340011285602) | 5306-01-598-2806 (5306015982806) | 5306-00-660-2761 (5306006602761) | 5310-01-632-4360 (5310016324360) | |
| 5365-00-003-1724 (5365000031724) | 5305-01-246-0089 (5305012460089) | 5310-00-052-8840 (5310000528840) | 5310-00-016-5834 (5310000165834) | |
| 5330-00-477-2508 (5330004772508) | 5310-00-424-2018 (5310004242018) | 5325-00-349-3151 (5325003493151) | 5365-01-613-0724 (5365016130724) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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