| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-934-0053 (009340053) |
| NCB Code | USA (00) |
| Manufacturer | National Aerospace Standards Com, Military Standards Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| MS51975-13 | national aerospace standards com | screw shoulder | 80205 | RFQ |
| MS51975-13 | military standards corp | screw shoulder | 96906 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.343 INCHES MINIMUM AND 0.363 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.928 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.209 INCHES MINIMUM AND 0.219 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.3085 INCHES MINIMUM FIRST SHOULDER AND 0.3105 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.495 INCHES MINIMUM FIRST SHOULDER AND 1.505 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ASDB | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP 4037 OVERALL OR STEEL COMP 4137 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-00-934-0053, 5305009340053 | ||||
| 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.
Request for Quote
