| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-302-9731 (003029731) |
| NCB Code | USA (00) |
| Manufacturer | Boeing Company The, Sps Technologies Inc, Alcoa Global Fasteners Inc, Hi Shear Corporation, Lisi Aerospace Canada Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 3M51-5-23 | boeing company the | screw shoulder | 76301 | RFQ |
| 54267-5-23 | sps technologies inc | screw shoulder | 50394 | RFQ |
| HT404A5-23 | alcoa global fasteners inc | screw shoulder | 92215 | RFQ |
| HT51UA23 | hi shear corporation | screw shoulder | 73197 | RFQ |
| HT51UA23 | lisi aerospace canada corp | screw shoulder | l4528 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.505 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.953 INCHES MINIMUM AND 2.000 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| AASL | HEAD DIAMETER | 0.628 INCHES MINIMUM AND 0.633 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.081 INCHES MINIMUM AND 0.083 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.327 INCHES MINIMUM FIRST SHOULDER AND 0.328 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.300 INCHES MINIMUM FIRST SHOULDER AND 1.322 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES MINIMUM |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | FURNISHED WITH O RING |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 3-53 FSC-76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 3-53 FSC-76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Components Related to NSN - 5305-00-302-9731, 5305003029731 | ||||
| 5325-01-017-8809 (5325010178809) | 5330-01-278-3019 (5330012783019) | 5365-01-304-3832 (5365013043832) | 5305-15-060-1487 (5305150601487) | |
| 5305-01-361-3193 (5305013613193) | 5330-01-259-4088 (5330012594088) | 5340-01-672-8342 (5340016728342) | 5342-00-452-9798 (5342004529798) | |
| 5310-01-175-0629 (5310011750629) | 5330-01-120-4149 (5330011204149) | 5331-01-441-4577 (5331014414577) | 5330-01-425-8795 (5330014258795) | |
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