| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-375-2857 (013752857) |
| NCB Code | USA (01) |
| Manufacturer | Lockheed Martin Corporation, Sumatech Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASU | HEAD HEIGHT | 1.000 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.812 INCHES NOMINAL FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 5.000 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | 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. KEYWAY LG 1.120 IN.,; HOLE IN HEAD 0.315-0.321 IN. DIA |
| SFTT | SURFACE TREATMENT | NICKEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 5.780 INCHES NOMINAL |
| AASK | HEAD STYLE | SPADE |
| AASV | HEAD LENGTH | 0.812 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM |
| AATX | SHOULDER LENGTH | 3.940 INCHES NOMINAL FIRST SHOULDER |
| CBBL | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 COND D-1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AAJD | THREAD CLASS | 2A |
| AASB | FASTENER LENGTH | 11.890 INCHES NOMINAL |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL |
| Components Related to NSN - 5305-01-375-2857, 5305013752857 | ||||
| 5340-01-631-5368 (5340016315368) | 5330-01-297-3590 (5330012973590) | 5360-00-245-2131 (5360002452131) | 5365-01-571-1663 (5365015711663) | |
| 5342-01-255-3551 (5342012553551) | 5330-01-556-4440 (5330015564440) | 5330-01-613-3472 (5330016133472) | 5342-01-259-3873 (5342012593873) | |
| 5340-00-575-1873 (5340005751873) | 5310-00-151-9032 (5310001519032) | 5315-01-622-0550 (5315016220550) | 5340-01-429-0419 (5340014290419) | |
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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