The Screw Assembly,panel, cataloged under National Stock Number 5305-01-481-0568, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastener Technology Corp. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-481-0568 |
| Primary Part Number | FT1046-253A |
| Item Name | Screw Assembly,panel |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Technology Corp |
| Status | ACTIVE |
| Head Height | 0.100 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Fastener Length | 1.047 INCHES MINIMUM AND 1.077 INCHES MAXIMUM IN |
| Material Accommodated Thickness | 0.062 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | KNURLED NO. 3 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | OXIDE FASTENER |
| Surface Treatment | PASSIVATE SPRING |
| Surface Treatment | OXIDE PRIMARY WASHER |
| Surface Treatment | OXIDE STAND-OFF |
| Surface Treatment | OXIDE SECONDARY WASHER |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 301 SECONDARY WASHER |
| Material | STEEL COMP 302 SPRING |
| Material | IRON ALLOY 660 FASTENER |
| Material | STEEL COMP 304 STAND-OFF |
| Material | STEEL COMP 302 PRIMARY WASHER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.289 INCHES MINIMUM AND 0.329 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 |
|---|---|
| FT1046-253A PRIMARY | Fastener Technology Corp (USA) |
| 841581-253 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 841581-253 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 5305-01-481-0568 is a Screw Assembly,panel, manufactured by Fastener Technology Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-481-0568 has 2 manufacturer part numbers on file: FT1046-253A (Fastener Technology Corp), 841581-253 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for FT1046-253A: Head Height: 0.100 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Fastener Length: 1.047 INCHES MINIMUM AND 1.077 INCHES MAXIMUM IN; Material Accommodated Thickness: 0.062 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.164 INCHES IN. 21 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.