The Screw Assembly,panel, cataloged under National Stock Number 5305-01-024-4251, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-024-4251 |
| Primary Part Number | DCTH7900L-4-AA-2 |
| Item Name | Screw Assembly,panel |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.068 INCHES NOMINAL IN |
| Fastener Length | 0.478 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 1 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 1 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF |
| Material Accommodated Thickness | 0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM FASTENER |
| Material Document and Classification | MIL-S-8695 MIL SPEC SINGLE MATERIAL RESPONSE FASTENER |
| Material Document and Classification | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM STAND-OFF |
| Surface Treatment | CADMIUM FASTENER |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | COPPER ALLOY 360 STAND-OFF |
| Material | STEEL COMP 4037 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.219 INCHES NOMINAL 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 |
|---|---|
| DCTH7900L-4-AA-2 | Huck International, Inc (USA) |
| CS1170-2 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| DCT7900L-4-AA-2 | 5/9 Secondary reference U.S. Government activity |
| 965859-2C | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-024-4251 is a Screw Assembly,panel, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-024-4251 has 2 manufacturer part numbers on file: DCTH7900L-4-AA-2 (Huck International, Inc), CS1170-2 (Fastener Innovation Technology, Inc. Dba F I T).
Key specifications for DCTH7900L-4-AA-2: Head Height: 0.068 INCHES NOMINAL IN; Fastener Length: 0.478 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TYPE 1 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER; Surface Treatment Document and Classification: QQ-P-416 TYPE 1 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF. 20 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.