The Screw,close Tolerance, cataloged under National Stock Number 5305-01-512-8323, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-512-8323 |
| Primary Part Number | CA22033-4-10-12 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Thread Length | 0.312 INCHES NOMINAL IN |
| Supplementary Features | OTHER END ITEMS ARE PLYON,AIRCRAFT 01-470-6295,01-475-5569;SUU-79A/A PYLON & SUU-80A/A PYLON;FOR F /A-18E/F APPLICATIONS A |
| Criticality Code Justification | AGAV |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.438 INCHES NOMINAL IN |
| Grip Diameter | 0.249 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 3M1312-4-5 | The Boeing Company Div Defense (USA) |
| CA22033-4-10-12 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5305-01-512-8323 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-512-8323 has 2 manufacturer part numbers on file: 3M1312-4-5 (The Boeing Company Div Defense), CA22033-4-10-12 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for CA22033-4-10-12: Thread Length: 0.312 INCHES NOMINAL IN; Supplementary Features: OTHER END ITEMS ARE PLYON,AIRCRAFT 01-470-6295,01-475-5569;SUU-79A/A PYLON & SUU-80A/A PYLON;FOR F /A-18E/F APPLICATIONS A; Criticality Code Justification: AGAV; Nominal Thread Diameter: 0.250 INCHES IN. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.