AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Externally Relieved Body |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-731-2028 (007312028) |
| NCB Code | USA (00) |
| Manufacturer | Eca Etablissement Central Des, Nimikkeistokeskus Ncb Finland, Army United States Department Of The, Springfield Armory, Inspektorat Wsparcia Sil Zbrojnych, Giat Industries, Manroy Engineering Ltd, Samsun Yurt Savunma Sanayi Ve, Fn Herstal Sa |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 53057312028 | eca etablissement central des | screw externally relieved body | RFQ |
| 366-200-1641 | eca etablissement central des | screw externally relieved body | RFQ |
| 10074183 | nimikkeistokeskus ncb finland | screw externally relieved body | RFQ |
| 7312028 | army united states department of the | screw externally relieved body | RFQ |
| 5305007312028 | eca etablissement central des | screw externally relieved body | RFQ |
| 1005-731-2028 | eca etablissement central des | screw externally relieved body | RFQ |
| 7312028 | springfield armory | screw externally relieved body | RFQ |
| 5305PL0954026 | inspektorat wsparcia sil zbrojnych | screw externally relieved body | RFQ |
| 75F6202 | giat industries | screw externally relieved body | RFQ |
| A10587 | manroy engineering ltd | screw externally relieved body | RFQ |
| 201010030 | samsun yurt savunma sanayi ve | screw externally relieved body | RFQ |
| 3662001641 | fn herstal sa | screw externally relieved body | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASB | FASTENER LENGTH | 0.500 INCHES NOMINAL |
| AAWC | FIRST DIAMETER FROM HEAD | 0.200 INCHES NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRSQ | COUNTERSINK ANGLE | 83.0 DEGREES MINIMUM AND 85.0 DEGREES MAXIMUM |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| MATT | MATERIAL | STEEL COMP 1035 OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.160 INCHES MINIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.455 INCHES NOMINAL |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.340 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| CQFM | HARDNESS RATING | 47.0 ROCKWELL C NOMINAL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR ASTM A675 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Relevant Components for NSN - 5305-00-731-2028, 5305007312028 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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