| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-054-4973 (000544973) |
| NCB Code | USA (00) |
| Manufacturer | Huck International Inc, Northrop Grumman Systems Corporation, Sps Technologies Inc, Northrop Grumman Technical Services Inc, Hi Shear Corporation, Alcoa Global Fasteners Inc, Lisi Aerospace Canada Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 51B234-3 | huck international inc | screw cap socket head | 17446 | RFQ |
| 51B234-3 | northrop grumman systems corporation | screw cap socket head | 76823 | RFQ |
| 51B234-3 | sps technologies inc | screw cap socket head | 80539 | RFQ |
| 51B234-3 | northrop grumman technical services inc | screw cap socket head | 0jrc1 | RFQ |
| 51B234-3 | hi shear corporation | screw cap socket head | 73197 | RFQ |
| 51B234-3 | alcoa global fasteners inc | screw cap socket head | 92215 | RFQ |
| 51B234-3 | lisi aerospace canada corp | screw cap socket head | l4528 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.316 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 0.503 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.499 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AAUM | LOCKING FEATURE | PATCH THREADS OR STRIP THREADS |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-054-4973, 5305000544973 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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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