| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-810-1266 (008101266) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Hi Shear Corporation, Alcoa Global Fasteners Inc, Berco Mfg Co, Northrop Grumman Technical Services Inc, Sps Technologies Inc, Lisi Aerospace Canada Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 51B334-40H | northrop grumman systems corporation | screw close tolerance | 76823 | RFQ |
| 51B334-40H | hi shear corporation | screw close tolerance | 73197 | RFQ |
| 51B334-40H | alcoa global fasteners inc | screw close tolerance | 92215 | RFQ |
| 51B334-40H | berco mfg co | screw close tolerance | 06954 | RFQ |
| 51B334-40H | northrop grumman technical services inc | screw close tolerance | 0jrc1 | RFQ |
| 51B334-40H | sps technologies inc | screw close tolerance | 56878 | RFQ |
| 51B334-40H | lisi aerospace canada corp | screw close tolerance | l4528 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.507 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL OR CADMIUM OVERALL AND CHROMATE OVERALL |
| AAJD | THREAD CLASS | 3A |
| AASA | THREAD LENGTH | 0.316 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 2.770 INCHES MINIMUM AND 2.837 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.2482 INCHES MINIMUM AND 0.2487 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ANEE | GRIP LENGTH | 2.470 INCHES MINIMUM AND 2.490 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.116 INCHES NOMINAL FIRST HOLE |
| MATT | MATERIAL | STEEL COMP 4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP E4340 OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 1 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR QQ-P-416 TY 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-810-1266, 5305008101266 | ||||
| 5305-01-339-0166 (5305013390166) | 5365-01-662-5153 (5365016625153) | 5360-01-351-8647 (5360013518647) | 5305-00-452-2092 (5305004522092) | |
| 5320-01-350-0370 (5320013500370) | 5365-01-048-9619 (5365010489619) | 5330-01-329-6615 (5330013296615) | 5331-00-493-8173 (5331004938173) | |
| 5330-00-146-3153 (5330001463153) | 5305-00-052-8884 (5305000528884) | 5330-01-651-5544 (5330016515544) | 5310-00-444-5136 (5310004445136) | |
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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