---
type: "o-ring"
dash_number: "013"
designation: "AS568-013"
cs_series: "004-050"
cs_series_name: "AS568 1/16 in series"
id_in: 0.426
id_mm: 10.82
cs_in: 0.07
cs_mm: 1.78
od_in: 0.566
od_mm: 14.38
id_tol_in: 0.0051
cs_tol_in: 0.0031
standard: "SAE AS568; MIL-G-5514G (public domain, inactive for new design)"
verified: "August 1, 2026"
url: https://shopmath.org/o-rings/as568-013
---

# AS568-013 O-Ring Size — ID, Cross-Section and OD

An AS568-013 o-ring has an inside diameter of 0.4260 in (10.820 mm) and a 0.0700 in (1.780 mm) cross-section, for an outside diameter of 0.5660 in (14.380 mm). It belongs to the AS568 1/16 in series band.

- **Dash number**: 013
- **Cross-section series**: AS568 1/16 in series
- **Inside diameter**: 0.4260 in (10.820 mm)
- **Cross-section**: 0.0700 in (1.780 mm)
- **Outside diameter**: 0.5660 in (14.380 mm)
- **Standard**: SAE AS568; MIL-G-5514G (public domain, inactive for new design)

## AS568-013 Dimensions and Tolerances

| Dimension | Inch | Millimetre |
| --- | --- | --- |
| Inside diameter (ID) | 0.4260 | 10.820 |
| Cross-section (CS) | 0.0700 | 1.780 |
| Outside diameter (OD) | 0.5660 | 14.380 |
| ID tolerance | ±0.0051 | ±0.130 |
| CS tolerance | ±0.0031 | ±0.080 |

_Outside diameter is computed as ID + 2 × CS; AS568 tabulates ID and CS._

## Gland Design for AS568-013

Static gland dimensions for the 0.070 in cross-section. Depth is the groove depth that produces the stated squeeze on a nominal ring.

| Application | Squeeze | Squeeze (in) | Gland depth (in) | Gland depth (mm) |
| --- | --- | --- | --- | --- |
| Static face seal | 19–32% | 0.0133 – 0.0224 | 0.0476 – 0.0567 | 1.209 – 1.440 |
| Static radial seal | 22–32% | 0.0154 – 0.0224 | 0.0476 – 0.0546 | 1.209 – 1.387 |

_Gland depth is computed as CS − (CS × squeeze %), then checked against the published design charts. Groove width, corner radius and back-up ring allowances are outside this dataset._

## O-Ring Sizes Closest to AS568-013

Nearest AS568 sizes by inside diameter — the substitutes to check when this one is out of stock.

| Size | ID (in) | ID (mm) | CS (in) | OD (in) |
| --- | --- | --- | --- | --- |
| [AS568-111](https://shopmath.org/o-rings/as568-111.md) | 0.4240 | 10.770 | 0.1030 | 0.6300 |
| [AS568-205](https://shopmath.org/o-rings/as568-205.md) | 0.4210 | 10.690 | 0.1390 | 0.6990 |
| [AS568-309](https://shopmath.org/o-rings/as568-309.md) | 0.4120 | 10.460 | 0.2100 | 0.8320 |
| [AS568-310](https://shopmath.org/o-rings/as568-310.md) | 0.4750 | 12.070 | 0.2100 | 0.8950 |
| [AS568-206](https://shopmath.org/o-rings/as568-206.md) | 0.4840 | 12.290 | 0.1390 | 0.7620 |
| [AS568-112](https://shopmath.org/o-rings/as568-112.md) | 0.4870 | 12.370 | 0.1030 | 0.6930 |

## Sources and Method for AS568-013

### AS568 dimensions

- **Source**: bd_warehouse o-ring_parameters.csv (Apache-2.0) and bckasper3/KasperCalc oring-sizes.js (MIT), agreeing on all 349 sizes; OD computed as ID + 2 x CS
- **Method**: computed+compiled
- **Verified against**: two independent open datasets agreeing on all 349 sizes; fabricated-dataset negative control passed; 21 checks total

### Gland design

- **Source**: MIL-G-5514G (public domain) gland design criteria; squeeze-percentage bands cross-read from Parker O-Ring Handbook ORD-5700 Design Charts 4-2/4-3 (verification only); depth = CS - CS x squeeze%
- **Method**: computed
- **Verified against**: computed depth band brackets the published design-chart band for every series

### Assumptions

- Dimensions are for a nominal, unstretched ring at room temperature. Installed stretch reduces cross-section.
- Gland figures are static-application only and assume a nominal ring; they carry no compound, temperature or pressure assumption.
- Dataset scope: A fabricated-dataset negative control is asserted against on every run. EXCLUDED: groove width, corner radius, diametral clearance, back-up ring widths, surface finish, all dynamic glands, the 900-series, and ISO 3601 metric sizes.

**Data last verified**: August 1, 2026

## Common Questions About the AS568-013 O-Ring

### What size is an AS568-013 o-ring?

AS568-013 has an inside diameter of 0.4260 in (10.820 mm) and a cross-section of 0.0700 in (1.780 mm), giving an outside diameter of 0.5660 in (14.380 mm).

### What is the o-ring size tolerance on AS568-013?

The AS568 tolerance on AS568-013 is ±0.0051 in (±0.130 mm) on the inside diameter and ±0.0031 in (±0.080 mm) on the cross-section.

### What groove depth does an AS568-013 o-ring need?

For a static face seal, an 0.070 in cross-section needs a gland depth of 0.0476 to 0.0567 in (1.209 to 1.440 mm), which puts the ring at 19–32% squeeze.

### What o-ring is closest in size to AS568-013?

The nearest AS568 sizes by inside diameter are AS568-111 (0.4240 in ID), AS568-205 (0.4210 in ID), AS568-309 (0.4120 in ID).

## Related pages

- Previous dash number: [AS568-012](https://shopmath.org/o-rings/as568-012.md) — 0.3640 in ID
- Next dash number: [AS568-014](https://shopmath.org/o-rings/as568-014.md) — 0.4890 in ID
- All o-ring sizes: [AS568 o-ring reference](https://shopmath.org/o-rings.md)
- Full size chart: [AS568 o-ring size chart](https://shopmath.org/charts/o-ring-sizes.md)

---

*Source: [ShopMath](https://shopmath.org/o-rings/as568-013) — data verified August 1, 2026. Reference data; verify against the governing standard before manufacture.*