The Screw,panel Fastener, cataloged under National Stock Number 5305-01-481-0373, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-481-0373 |
| Primary Part Number | 397539-1 |
| Item Name | Screw,panel Fastener |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| Fastener Length | 0.750 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | UNABLE TO DECODE |
| Thread Length | 0.170 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Material Document and Classification | UNABLE TO DECODE |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Surface Treatment | UNABLE TO DECODE |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | UNABLE TO DECODE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 397539-1 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
NSN 5305-01-481-0373 is a Screw,panel Fastener, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-481-0373 has 1 manufacturer part number on file: 397539-1 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
Key specifications for 397539-1: Fastener Length: 0.750 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN; Surface Treatment Document and Classification: UNABLE TO DECODE; Thread Length: 0.170 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Material Document and Classification: UNABLE TO DECODE. 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.