The Washer,shouldered, cataloged under National Stock Number 5310-01-317-6440, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-317-6440 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Shoulder Height | 0.031 INCHES NOMINAL IN |
| Heat Treatment | T-6 SOLUTION HEAT TREATED, ARTIFICALLY AGED |
| Criticality Code Justification | ZZZY |
| Style Designator | SHOULDERED |
| Outside Diameter | 5.824 INCHES MINIMUM AND 5.855 INCHES MAXIMUM IN |
| Material Thickness | 0.157 INCHES NOMINAL IN |
| Shoulder Diameter | 3.234 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Hole Diameter | 2.750 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| LL-HQ6-3940 | 5/9 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| C-106140-2 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5310-01-317-6440 is a Washer,shouldered, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-317-6440: Special Test Features: SPECIAL QUALITY CONTROL TESTING; Shoulder Height: 0.031 INCHES NOMINAL IN; Heat Treatment: T-6 SOLUTION HEAT TREATED, ARTIFICALLY AGED; Criticality Code Justification: ZZZY. 12 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.