| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-498-4597 (014984597) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| NAS1974 15H | national aerospace standards com | screw close tolerance | 80205 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | Thread Class | 3A |
| AHYM | Nominal Thread Diameter | 0.250 INCHES |
| AASK | Head Style | FLAT COUNTERSUNK |
| ANEE | Grip Length | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM |
| MATT | Material | STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL |
| ABQZ | Internal Drive Style | HIGH-TORQUE |
| AASA | Thread Length | 0.425 INCHES NOMINAL |
| SFTT | Surface Treatment | CADMIUM OVERALL |
| AASL | Head Diameter | 0.449 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| MRC | Decoded Requirement | Clear Text Reply |
| AASB | Fastener Length | 1.348 INCHES MINIMUM AND 1.378 INCHES MAXIMUM |
| STDC | Surface Treatment Document And Classification | QQ-P-416, TYII, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | Thread Series Designator | UNJF |
| MDCL | Material Document And Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| AAJF | Thread Direction | RIGHT-HAND |
| AAUR | Grip Diameter | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| CMLP | Thread Quantity Per Inch | 28 |
| CRSQ | Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Components Related to NSN - 5305-01-498-4597, 5305014984597 | ||||
| 5325-01-017-8809 (5325010178809) | 5330-01-278-3019 (5330012783019) | 5365-01-304-3832 (5365013043832) | 5305-15-060-1487 (5305150601487) | |
| 5305-01-361-3193 (5305013613193) | 5330-01-259-4088 (5330012594088) | 5340-01-672-8342 (5340016728342) | 5342-00-452-9798 (5342004529798) | |
| 5310-01-175-0629 (5310011750629) | 5330-01-120-4149 (5330011204149) | 5331-01-441-4577 (5331014414577) | 5330-01-425-8795 (5330014258795) | |
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