The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-302-5218, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-302-5218 |
| Primary Part Number | FF-S-86 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Thread Quantity Per Inch | 11 |
| Criticality Code Justification | ZZZX |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Departure From Cited Designator | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Width Across Flats | 0.500 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Head Height | 0.922 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN |
| Thread Length | 1.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Internal Drive Style | HEXAGON |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Width Between Flats | 1.283 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | VI TYPE |
| Thread Class | 3A A |
| Head Style | HEXAGON |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FF-S-86 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| FF-S-86, TYPE VI | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 5/8-11UNC-3A X 1 1/4 INCHES | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| QQ-N-281; CLASS AL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| FF-S-86L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| FF-S-86, TYPE VIL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| QQ-N-281; CLASS A | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 5/8-11UNC-3A X 1 1/4 INCHESL1 | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5305-01-302-5218 is a Screw,cap,socket Head, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-302-5218 has 8 cross-referenced part numbers: FF-S-86 (Federal Specifications Promulgated by General Services Administration Washington DC), FF-S-86, TYPE VI (Federal Specifications Promulgated by General Services Administration Washington DC), 5/8-11UNC-3A X 1 1/4 INCHES (Federal Specifications Promulgated by General Services Administration Washington DC), QQ-N-281; CLASS AL1 (Naval Inventory Control Point Mechanicsburg), FF-S-86L1 (Naval Inventory Control Point Mechanicsburg) and 3 more.
There are 12 known substitutes for 5305-01-302-5218: 9530-00-239-4455, 9530-00-239-4459, 9530-00-239-4460 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for FF-S-86: Thread Quantity Per Inch: 11; Criticality Code Justification: ZZZX; Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 18 total characteristics are documented in the Federal Logistics Information System.