| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-282-7502 (012827502) |
| NCB Code | USA (01) |
| Manufacturer | Lockheed Martin Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | LEFT-HAND |
| AASA | THREAD LENGTH | 5.780 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 11.890 INCHES NOMINAL |
| AASK | HEAD STYLE | SPADE |
| AASU | HEAD HEIGHT | 1.000 INCHES NOMINAL |
| AASV | HEAD LENGTH | 0.812 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.812 INCHES NOMINAL FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 3.940 INCHES NOMINAL FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| CBBL | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | SSOLID FILM LUBRICANT ON THREADS AND SHOULDER; THREADS ON POINTED END 0.250-28UNF-2A; THREAD RELIEF 0.060 IN. LG. SHOULDER OVER POINT 0.433-0.435 IN. DIA.; 1.500 IN. LG WITH KEYWAY LG 1.120 IN.; HOLE IN HEAD 0.315-0.321 IN. DIA |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 COND D-1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PAINT FIRST SHOULDER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-24441/1 MIL SPEC SINGLE TREATMENT RESPONSE FIRST SHOULDER AND MIL-P-24441/2 MIL SPEC SINGLE TREATMENT RESPONSE FIRST SHOULDER AND MIL-P-2444/3 MIL SPEC SINGLE TREATMENT RESPONSE FIRST SHOULDER |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-01-282-7502, 5305012827502 | ||||
| 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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