The Screw Assembly,panel, cataloged under National Stock Number 5305-01-334-6656, 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 30 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-334-6656 |
| Primary Part Number | DSC7900-6-B-3.5 |
| Item Name | Screw Assembly,panel |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.082 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN |
| Fastener Length | 0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING |
| Surface Treatment Document and Classification | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE SECONDARY WASHER |
| Surface Treatment Document and Classification | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER |
| Surface Treatment Document and Classification | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFF |
| Surface Treatment Document and Classification | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| Material Accommodated Thickness | 0.063 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Thread Length | 0.170 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE SECONDARY WASHER |
| Material Document and Classification | ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| Material Document and Classification | AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF |
| Material Document and Classification | ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | KNURLED NO. 2 |
| 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 | STEEL COMP 304 STAND-OFF |
| Material | STEEL COMP 302 PRIMARY WASHER |
| Material | STEEL COMP 302 FASTENER |
| 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 |
|---|---|
| 841581-226 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| DSC7900-6-B-3.5 PRIMARY | Huck International, Inc (USA) |
| DSC7900-6-B-3.5 PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| Reference | Meaning |
|---|---|
| 841581-226 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| 841581-26 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| 841581-26 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| DSC7900-6-B-3.5 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-334-6656 is a Screw Assembly,panel, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-334-6656 has 3 manufacturer part numbers on file: 841581-226 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), DSC7900-6-B-3.5 (Huck International, Inc), DSC7900-6-B-3.5 (Huck International, Inc. Div Huck Products Division).
Key specifications for DSC7900-6-B-3.5: Head Height: 0.082 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN; Fastener Length: 0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING; Surface Treatment Document and Classification: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE SECONDARY WASHER. 30 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.