The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-302-5219, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 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 | 5305-01-302-5219 |
| Primary Part Number | 1/2-13UNC-3A X 2 1/2 INCHESL1 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Internal Drive Style | HEXAGON |
| Thread Quantity Per Inch | 13 |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Departure From Cited Document | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Head Style | HEXAGON |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Departure From Cited Designator | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Width Between Flats | 2.500 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | VI TYPE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZW |
| Thread Class | 3A A |
| Thread Length | 2.500 INCHES NOMINAL IN |
| Width Across Flats | 0.375 INCHES NOMINAL IN |
| Head Height | 0.642 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1/2-13UNC-3A X 2 1/2 INCHESL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| QQ-N-281 GRADE 400 CLASS A | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 1/2-13UNC-3A X 2 1/2 INCHES | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| FF-S-86 TYPE VIL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| FF-S-86 TYPE VI | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| QQ-N-281 GRADE 400 CLASS AL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1/2-13UNC-3A X 2 1/2 INCHES | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| FF-S-86 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| FF-S-86L1 | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5305-01-302-5219 is a Screw,cap,socket Head, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-302-5219 has 9 cross-referenced part numbers: 1/2-13UNC-3A X 2 1/2 INCHESL1 (Naval Inventory Control Point Mechanicsburg), QQ-N-281 GRADE 400 CLASS A (Federal Specifications Promulgated by General Services Administration Washington DC), 1/2-13UNC-3A X 2 1/2 INCHES (Federal Specifications Promulgated by General Services Administration Washington DC), FF-S-86 TYPE VIL1 (Naval Inventory Control Point Mechanicsburg), FF-S-86 TYPE VI (Federal Specifications Promulgated by General Services Administration Washington DC) and 4 more.
There are 12 known substitutes for 5305-01-302-5219: 5305-00-865-1659, 5305-01-052-1161, 5305-01-065-8335 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1/2-13UNC-3A X 2 1/2 INCHESL1: Internal Drive Style: HEXAGON; Thread Quantity Per Inch: 13; Material: NICKEL ALLOY OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 19 total characteristics are documented in the Federal Logistics Information System.