The Screw,assembled Washer, cataloged under National Stock Number 5305-01-323-2290, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 30 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 | 5305-01-323-2290 |
| Primary Part Number | 244-0086-010 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Width Across Flats | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN |
| Head Height | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Secondary Washer Relationship to Primary Washer | IDENTICAL |
| Surface Treatment Document and Classification | QQ-P-416 TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633 CL FE/ZN 12 TY 2 ASSN STD 2ND TREATMENT RESPONSE FASTENER |
| Surface Treatment Document and Classification | QQ-P-416 TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633 CL FE/ZN 12 TY 2 ASSN STD 2ND TREATMENT RESPONSE PRIMARY WASHER |
| Surface Treatment Document and Classification | QQ-P-416 TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633 CL FE/ZN 12 TY 2 ASSN STD 2ND TREATMENT RESPONSE SECONDARY WASHER |
| Thread Length | 0.440 INCHES MINIMUM IN |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES PRIMARY WASHER |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE FASTENER |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE SECONDARY WASHER |
| Secondary Washer Style | FLAT |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT CHAMFER |
| Primary Washer Style | SPLIT HELICAL RING |
| Thread Direction | RIGHT-HAND |
| Secondary Washer Outside Diameter | 0.562 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE FASTENER |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE PRIMARY WASHER |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE SECONDARY WASHER |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Secondary Washer Material Thickness | 0.062 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 24 |
| Material | STEEL FASTENER |
| Material | STEEL SECONDARY WASHER |
| Material | STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1071 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 PRIMARY WASHER |
| Thread Series Designator | UNF |
| Washer Quantity | 2 |
| Head Diameter | 0.303 INCHES MINIMUM AND 0.312 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 |
|---|---|
| 244-0086-010 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 5305-01-323-2290 is a Screw,assembled Washer, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-323-2290 has 1 manufacturer part number on file: 244-0086-010 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 244-0086-010: Width Across Flats: 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN; Head Height: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Fastener Length: 0.750 INCHES NOMINAL IN; Secondary Washer Relationship to Primary Washer: IDENTICAL. 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.