The Screw,close Tolerance, cataloged under National Stock Number 5305-00-639-5774, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-639-5774 |
| Primary Part Number | 498 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use |
| Status | CANCELLED |
| Head Diameter | 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Class | 3A A |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Specification/standard Data | 80205-NAS335 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
| Thread Series Designator | UNF |
| Surface Finish | 32.0 MICROINCHES TOP OF HEAD |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Thread Length | 0.448 INCHES MINIMUM IN |
| Thread Direction | RIGHT-HAND |
| Fastener Length | 1.265 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Grip Length | 0.750 INCHES NOMINAL IN |
| Material | STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
| Thread Quantity Per Inch | 24 |
| Grip Diameter | 0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 498 PRIMARY | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| NAS335PA11-5 PRIMARY | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
NSN 5305-00-639-5774 is a Screw,close Tolerance, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-639-5774 has 2 cross-referenced part numbers: 498 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), NAS335PA11-5 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).
There are 12 known substitutes for 5305-00-639-5774: 3110-00-100-0264, 5325-00-275-4464, 4030-00-539-8052 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 498: Head Diameter: 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.312 INCHES IN; Head Style: FLAT COUNTERSUNK; Thread Class: 3A A. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-639-5774 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.