The Screw,machine, cataloged under National Stock Number 5305-01-421-0492, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 13 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 | 5305-01-421-0492 |
| Primary Part Number | 3353AS345-2 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Fastener Length | 0.345 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AISI 300 SERIES ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.302 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | SLOT |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 64 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.123 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3353AS345-2 | Lenox Instrument Co., Inc. (USA) |
| 3353AS345-2 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5305-01-421-0492 is a Screw,machine, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-421-0492 has 2 manufacturer part numbers on file: 3353AS345-2 (Lenox Instrument Co., Inc.), 3353AS345-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 3353AS345-2: Fastener Length: 0.345 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Screw Material Document and Classification: AISI 300 SERIES ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.302 INCHES MINIMUM IN; Nominal Thread Diameter: 0.073 INCHES IN. 13 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.