The Screw,assembled Washer, cataloged under National Stock Number 5305-00-181-0766, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-181-0766 |
| Primary Part Number | 10084566 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Head Height | 0.167 INCHES NOMINAL IN |
| Fastener Length | 1.209 INCHES NOMINAL IN |
| Secondary Washer Relationship to Primary Washer | IDENTICAL |
| Surface Treatment Document and Classification | 171,5.4.1 MIL STD SINGLE TREATMENT RESPONSE FASTENER |
| Surface Treatment Document and Classification | 171,7.2.1 MIL STD SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| Primary Washer Outside Diameter | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Thread Length | 0.462 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5735 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC 2ND MATERIAL RESPONSE FASTENER |
| Material Document and Classification | QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FILLISTER |
| Primary Washer Style | SPLIT HELICAL RING |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.104 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE FASTENER |
| Surface Treatment | ANODIZE PRIMARY WASHER |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | ALUMINUM ALLOY 6061 PRIMARY WASHER |
| Material | IRON ALLOY OR STEEL COMP 301 FASTENER |
| Thread Series Designator | UNF |
| Washer Quantity | 3 |
| Head Diameter | 0.474 INCHES MINIMUM AND 0.490 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 |
|---|---|
| 10084566 PRIMARY | Us Army Aviation and Missile Command (USA) |
| DWWT7900-12-N-9 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| DWWT7900-12-N-9 | 5/9 Secondary reference U.S. Government activity |
| 5305001810766 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5305-00-181-0766 is a Screw,assembled Washer, manufactured by Us Army Aviation and Missile Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-181-0766 has 2 manufacturer part numbers on file: 10084566 (Us Army Aviation and Missile Command), DWWT7900-12-N-9 (Huck International, Inc).
Key specifications for 10084566: Head Height: 0.167 INCHES NOMINAL IN; Fastener Length: 1.209 INCHES NOMINAL IN; Secondary Washer Relationship to Primary Washer: IDENTICAL; Surface Treatment Document and Classification: 171,5.4.1 MIL STD SINGLE TREATMENT RESPONSE FASTENER. 23 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.