The Washer,flat, cataloged under National Stock Number 5310-01-511-3121, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-511-3121 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 1.462 INCHES MINIMUM AND 1.499 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-T-9047, (6AL-4V) ANNEALED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL V |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.805 INCHES MINIMUM AND 0.842 INCHES MAXIMUM IN |
| Thickness | 0.108 INCHES MINIMUM AND 0.160 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 |
| Reference | Meaning |
|---|---|
| A107726-101-11 ITEM 4 | 5/9 Secondary reference General Dynamics Adv Info Sys |
| A107748-222-11 | 3/9 Design control — primary reference General Dynamics Adv Info Sys |
| A107726-101-11 ITEM 4 | C/1 Advisory reference — outside the item-of-supply concept General Dynamics Mission Systems, Inc. |
| A107748-222-11 | C/1 Advisory reference — outside the item-of-supply concept General Dynamics Mission Systems, Inc. |
NSN 5310-01-511-3121 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-511-3121: Overall Diameter: 1.462 INCHES MINIMUM AND 1.499 INCHES MAXIMUM IN; Material Document and Classification: MIL-T-9047, (6AL-4V) ANNEALED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL V; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 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.