| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-637-4225 (006374225) |
| NCB Code | USA (00) |
| Manufacturer | Bristol Babcock Inc, Rockwell Collins Aerospace, Cardwell Condester Corp, Federal Specifications |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 4-40X9-166SPLIN | bristol babcock inc | screw cap socket head | 08664 | RFQ |
| 324-0303-000 | rockwell collins aerospace | screw cap socket head | 13499 | RFQ |
| 324-0303-00 | cardwell condester corp | screw cap socket head | 94033 | RFQ |
| 324-0303-00 | rockwell collins aerospace | screw cap socket head | 13499 | RFQ |
| B2A440-9C1 | bristol babcock inc | screw cap socket head | 08664 | RFQ |
| FFS86 | federal specifications | screw cap socket head | 81348 | RFQ |
| 324-0666-00 | rockwell collins aerospace | screw cap socket head | 95105 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.497 INCHES MINIMUM AND 0.547 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.547 INCHES MINIMUM AND 0.579 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM |
| AAUH | SPLINE MINOR DIAMETER | 0.080 INCHES MINIMUM AND 0.082 INCHES MAXIMUM |
| AAUJ | SPLINE MAJOR DIAMETER | 0.097 INCHES MINIMUM AND 0.098 INCHES MAXIMUM |
| AAUK | SPLINE WIDTH | 0.021 INCHES MINIMUM AND 0.022 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SIX SPLINE |
| AHYM | NOMINAL THREAD DIAMETER | 0.112 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 40 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| CQHQ | MINIMUM YIELD STRENGTH | 130000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 3 TYPE |
| Relevant Components for NSN - 5305-00-637-4225, 5305006374225 | ||||
| 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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