The Washer,shouldered, cataloged under National Stock Number 5310-00-007-5839, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Boeing Distribution Services X, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-007-5839 |
| Primary Part Number | S9404-20 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Boeing Distribution Services X, Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | EMS52401 TYPE;I CL B FSCM 99193 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Height | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | QQ-A-225/8 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.560 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN |
| Material Thickness | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Hole Diameter | 0.130 INCHES MINIMUM AND 0.140 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 |
|---|---|
| S9404-20 | Boeing Distribution Services X, Inc. (USA) |
| Reference | Meaning |
|---|---|
| S9404-20 | 3/2 Design control — primary reference U.S. Government activity |
| S9404-20 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
NSN 5310-00-007-5839 is a Washer,shouldered, manufactured by Boeing Distribution Services X, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-007-5839 has 1 manufacturer part number on file: S9404-20 (Boeing Distribution Services X, Inc.).
Key specifications for S9404-20: Surface Treatment Document and Classification: EMS52401 TYPE;I CL B FSCM 99193 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Shoulder Height: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN; Style Designator: SHOULDERED; Material Document and Classification: QQ-A-225/8 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 10 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.