| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-151-8660 (001518660) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Huck International Inc, Bf Goodrich Aerospace, Heartland Precision Fasteners In, Sps Technologies Inc, Aero Mechanical Fastening Systems Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| GS551P4-921 | northrop grumman systems corporation | screw shoulder | 26512 | RFQ |
| BM19070-921 | huck international inc | screw shoulder | 97928 | RFQ |
| 2R1465-13 | bf goodrich aerospace | screw shoulder | 03481 | RFQ |
| BM19070-4-921 | huck international inc | screw shoulder | 97928 | RFQ |
| HP6551P4-921 | heartland precision fasteners in | screw shoulder | 0zc92 | RFQ |
| PBF1286-921 | sps technologies inc | screw shoulder | 27624 | RFQ |
| 2R1863-921 | aero mechanical fastening systems inc | screw shoulder | 1fy45 | RFQ |
| GS551P-4921 | aero mechanical fastening systems inc | screw shoulder | 1fy45 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.406 INCHES MINIMUM AND 0.436 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.266 INCHES MINIMUM AND 1.296 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.357 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.254 INCHES MINIMUM FIRST SHOULDER AND 0.256 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.796 INCHES MINIMUM FIRST SHOULDER AND 0.826 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | HALF OF TOP SURFACE OF HEAD PAINTED ORANGE |
| MATT | MATERIAL | STEEL COMP 4037 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-151-8660, 5305001518660 | ||||
| 5330-01-701-4089 (5330017014089) | 5305-01-213-9722 (5305012139722) | 5320-01-460-5665 (5320014605665) | 5306-01-475-3608 (5306014753608) | |
| 5306-01-626-6230 (5306016266230) | 5306-00-292-8749 (5306002928749) | 5342-01-673-3505 (5342016733505) | 5330-01-283-1784 (5330012831784) | |
| 5365-01-228-1431 (5365012281431) | 5365-00-466-3750 (5365004663750) | 5310-00-595-7616 (5310005957616) | 5305-00-550-0140 (5305005500140) | |
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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